{"id":84328,"date":"2024-11-18T02:32:56","date_gmt":"2024-11-17T23:02:56","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/"},"modified":"2024-11-18T02:32:56","modified_gmt":"2024-11-17T23:02:56","slug":"why-eval-could-be-your-javascript-codes-worst-enemy-i7p","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/","title":{"rendered":"\u0686\u0631\u0627 eval() \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u062f\u062a\u0631\u06cc\u0646 \u062f\u0634\u0645\u0646 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0634\u0645\u0627 \u0628\u0627\u0634\u062f\u061f"},"content":{"rendered":"<p>Summarize this content to 400 words in Persian Lang <\/p>\n<p>  \u0645\u0642\u062f\u0645\u0647<\/p>\n<p>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a eval() \u062a\u0627\u0628\u0639 \u0628\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06cc\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u0646\u062f. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0631\u0627\u062d\u062a \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 eval() \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0645\u0634\u06a9\u0644\u0627\u062a \u062c\u062f\u06cc \u0627\u0632 \u062c\u0645\u0644\u0647 \u0622\u0633\u06cc\u0628 \u067e\u0630\u06cc\u0631\u06cc \u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc\u060c \u06a9\u0627\u0647\u0634 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0631\u0627 \u0627\u0632 \u06a9\u0627\u0631 \u0628\u06cc\u0646\u062f\u0627\u0632\u062f. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062f\u0644\u06cc\u0644 \u0622\u0646 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f eval() \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u062f\u060c \u062e\u0637\u0631\u0627\u062a \u0622\u0646\u060c \u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0627\u0645\u0646 \u062a\u0631\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0647\u0645\u0627\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>  \u0686\u06cc\u0633\u062a eval()?<\/p>\n<p>eval()  \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0633\u0631\u0627\u0633\u0631\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0645\u06cc \u06af\u06cc\u0631\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f. \u0631\u0634\u062a\u0647 \u0628\u0647 eval() \u062a\u0648\u0633\u0637 \u0645\u0641\u0633\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062a\u062c\u0632\u06cc\u0647 \u0648 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u067e\u0648\u06cc\u0627 \u0634\u0648\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644:<\/p>\n<p>const expression = &#8216;2 + 2&#8217;;<br \/>\nconsole.log(eval(expression)); \/\/ Outputs: 4<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627\u060c eval() \u0631\u0634\u062a\u0647 &#39;2 + 2&#39; \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0646\u062a\u06cc\u062c\u0647 4 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<p>  \u062c\u0630\u0627\u0628\u06cc\u062a \u0627\u0632 eval()<\/p>\n<p>\u062c\u0630\u0627\u0628\u06cc\u062a \u0627\u0635\u0644\u06cc \u0627\u0632 eval() \u062f\u0631 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0631\u0634\u062a\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u06a9\u062f \u0646\u0647\u0641\u062a\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0627\u0646\u0639\u0637\u0627\u0641\u200c\u067e\u0630\u06cc\u0631\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u06a9\u062f \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627\u060c \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631\u060c \u06cc\u0627 \u0627\u0646\u062c\u0627\u0645 \u06a9\u0627\u0631\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u0633\u0631\u06cc\u0627\u0644\u200c\u0633\u0627\u0632\u06cc \u0648 \u0633\u0631\u06cc\u0627\u0644\u200c\u0632\u062f\u0627\u06cc\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0631\u0627\u0647 \u062d\u0644\u06cc \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u062e\u0637\u0631\u0627\u062a \u0622\u0646 \u062f\u0631 \u0627\u06a9\u062b\u0631 \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 \u0631\u0627\u062d\u062a\u06cc \u0627\u0633\u062a.<\/p>\n<p>  \u062e\u0637\u0631\u0627\u062a eval()<\/p>\n<p>  \u0646\u06af\u0631\u0627\u0646\u06cc \u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc<\/p>\n<p>\u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645 \u062a\u0631\u06cc\u0646 \u062e\u0637\u0631\u0627\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 eval() \u0627\u0645\u0646\u06cc\u062a \u0627\u0633\u062a. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 eval() \u0647\u0631 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0627\u06af\u0631 \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0631\u0627 \u062f\u0631 \u0645\u0639\u0631\u0636 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f\u0647\u0627\u06cc \u0645\u062e\u0631\u0628 \u0642\u0631\u0627\u0631 \u062f\u0647\u062f. \u0627\u06cc\u0646 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0632\u0645\u0627\u0646\u06cc \u062e\u0637\u0631\u0646\u0627\u06a9 \u0627\u0633\u062a \u06a9\u0647 \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631\u06af\u06cc\u0631 \u0628\u0627\u0634\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u062a\u0632\u0631\u06cc\u0642 \u06a9\u062f \u0645\u062e\u0631\u0628<\/p>\n<p>\u0633\u0646\u0627\u0631\u06cc\u0648\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631 \u0628\u0647 \u0622\u0646 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f eval():<\/p>\n<p>\/\/ Imagine alert() could be any other kind of JS harmful function&#8230;<br \/>\nconst userInput = &#8216;alert(&#8220;Hacked!&#8221;)&#8217;; \/\/ Malicious input<br \/>\neval(userInput); \/\/ Executes malicious code<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u06cc\u06a9 \u0645\u0647\u0627\u062c\u0645 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u062f \u06a9\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u06cc\u06a9 \u0639\u0645\u0644 \u0645\u0636\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u0646\u0645\u0627\u06cc\u0634 \u062c\u0639\u0628\u0647 \u0647\u0634\u062f\u0627\u0631 \u0628\u0627 \u0648\u0631\u0648\u062f\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0644\u0627\u0647\u0628\u0631\u062f\u0627\u0631\u06cc \u0641\u06cc\u0634\u06cc\u0646\u06af\u060c \u0633\u0631\u0642\u062a \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u06cc\u0627 \u0627\u0646\u062c\u0627\u0645 \u0633\u0627\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u062e\u0631\u0628. \u0627\u06cc\u0646 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062d\u0645\u0644\u0647 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u06cc\u0646 \u0633\u0627\u06cc\u062a\u06cc (XSS) \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 eval() \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628 \u062f\u0631\u06cc \u0628\u0631\u0627\u06cc \u0645\u0647\u0627\u062c\u0645\u0627\u0646 \u0628\u0631\u0627\u06cc \u062a\u0632\u0631\u06cc\u0642 \u06a9\u062f \u062f\u0644\u062e\u0648\u0627\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0627\u0632 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06a9\u0644 \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u062f\u0631 \u0645\u0639\u0631\u0636 \u062e\u0637\u0631 \u0642\u0631\u0627\u0631 \u062f\u0647\u062f.<\/p>\n<p>  \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f<\/p>\n<p>eval()  \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0632\u06cc\u0631\u0627 \u0645\u0648\u062a\u0648\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0645\u062c\u0628\u0648\u0631 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u06a9\u062f \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u062a\u0641\u0633\u06cc\u0631 \u0648 \u0627\u062c\u0631\u0627 \u06a9\u0646\u062f \u06a9\u0647 \u0627\u0632 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u062e\u0627\u0635\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f. \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0645\u0627\u0646\u0646\u062f V8\u060c \u06a9\u062f \u0627\u0633\u062a\u0627\u062a\u06cc\u06a9 \u0631\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0627\u0645\u067e\u0627\u06cc\u0644 \u0628\u0647\u06cc\u0646\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f\u060c \u0627\u0645\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u067e\u0648\u06cc\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0627\u06cc\u0646 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc\u200c\u0647\u0627 \u063a\u06cc\u0631\u0641\u0639\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u0646\u062f\u062a\u0631 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u062a\u0627\u062b\u06cc\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f\u0645\u0648\u0642\u0639\u06cc\u062a\u06cc \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 eval() \u062f\u0631 \u06cc\u06a9 \u062d\u0644\u0642\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u062d\u0631\u0627\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<p>for (let i = 0; i &lt; 100000; i++) {<br \/>\n  eval(&#8216;var x = i * i&#8217;);<br \/>\n}<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0627\u06cc\u0646 \u06a9\u062f \u0647\u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 \u0646\u0633\u062e\u0647 \u063a\u06cc\u0631 \u067e\u0648\u06cc\u0627 \u0627\u0632 \u062d\u0644\u0642\u0647 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u062f \u0627\u0645\u0627 \u0633\u0631\u0628\u0627\u0631 \u062a\u0641\u0633\u06cc\u0631 \u0648 \u0627\u062c\u0631\u0627\u06cc \u0631\u0634\u062a\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc \u06a9\u0646\u062f. &#8216;var x = i * i&#8217; \u062f\u0631 \u0647\u0631 \u062a\u06a9\u0631\u0627\u0631 \u0627\u06cc\u0646 \u0633\u0631\u0628\u0627\u0631 \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u06a9\u0646\u062f \u06a9\u0646\u062f\u060c \u0628\u0647 \u062e\u0635\u0648\u0635 \u062f\u0631 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0632\u0631\u06af\u062a\u0631 \u06cc\u0627 \u0645\u062d\u06cc\u0637 \u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f.<\/p>\n<p>  \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u06a9\u0627\u0628\u0648\u0633 \u0647\u0627<\/p>\n<p>\u0648\u0642\u062a\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f eval()\u060c \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0633\u062e\u062a \u062a\u0631 \u0645\u06cc \u0634\u0648\u062f. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 eval() \u06a9\u062f\u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0631\u062f\u06cc\u0627\u0628\u06cc \u0622\u0646\u0686\u0647 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0645\u062d\u0644 \u0648\u0642\u0648\u0639 \u062e\u0637\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062f\u0634\u0648\u0627\u0631 \u06a9\u0646\u062f. \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0631 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0627\u0633\u062a\u0627\u062a\u06cc\u06a9 \u0648 eval() \u0627\u0632 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0635\u062d\u06cc\u062d \u06a9\u062f \u0627\u06cc\u0646 \u0627\u0628\u0632\u0627\u0631\u0647\u0627 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0648 \u062a\u0634\u062e\u06cc\u0635 \u0648 \u0631\u0641\u0639 \u0645\u0634\u06a9\u0644\u0627\u062a \u0631\u0627 \u062f\u0634\u0648\u0627\u0631\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u062e\u0637\u0627\u0647\u0627\u06cc \u067e\u0646\u0647\u0627\u0646\u06a9\u062f \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u06cc\u06a9 \u062e\u0637\u0627 \u062f\u0631 \u062f\u0627\u062e\u0644 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f eval():<\/p>\n<p>eval(&#8216;console.log(unknownVariable)&#8217;); \/\/ Throws error but hard to trace<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u062e\u0637\u0627\u06cc unknownVariable is not defined \u067e\u0631\u062a\u0627\u0628 \u0645\u06cc \u0634\u0648\u062f\u060c \u0627\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u06a9\u0647 \u06a9\u062f \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f. eval()\u060c \u0631\u062f\u06cc\u0627\u0628\u06cc \u0645\u0646\u0628\u0639 \u0645\u0634\u06a9\u0644 \u0686\u0627\u0644\u0634 \u0628\u0631\u0627\u0646\u06af\u06cc\u0632\u062a\u0631 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u062e\u0633\u062a\u0647 \u06a9\u0646\u0646\u062f\u0647 \u0648 \u0648\u0642\u062a \u06af\u06cc\u0631 \u0634\u0648\u062f.<\/p>\n<p>  \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631 \u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc<\/p>\n<p>\u062e\u0637\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0627\u0632 eval() \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0627\u0633\u062a. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u06a9\u062f \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631 \u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u062f\u060c \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u062f \u06cc\u0627 \u0628\u0627 \u0633\u0627\u06cc\u0631 \u0628\u062e\u0634 \u0647\u0627\u06cc \u06a9\u062f \u0628\u0647 \u0631\u0648\u0634 \u0647\u0627\u06cc \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647 \u0627\u06cc \u062a\u0639\u0627\u0645\u0644 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f. \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627\u0639\u062b \u062e\u0631\u0627\u0628\u06cc \u06cc\u0627 \u0627\u0634\u06a9\u0627\u0644\u0627\u062a\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0628\u0627\u0632\u062a\u0648\u0644\u06cc\u062f \u0622\u0646 \u0647\u0627 \u062f\u0634\u0648\u0627\u0631 \u0627\u0633\u062a.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u0645\u0633\u0627\u0626\u0644 \u0645\u062d\u062f\u0648\u062f\u0647<\/p>\n<p>let x = 10;<br \/>\neval(&#8216;x = x + 5&#8217;); \/\/ Modifies the global variable `x`<br \/>\nconsole.log(x); \/\/ Outputs: 15<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c eval() \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 x \u0631\u0627 \u062f\u0631 \u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u062f\u0647\u062f\u060c \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647 \u062f\u0631 \u0631\u0641\u062a\u0627\u0631 \u062f\u0631 \u062c\u0627\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0648\u062f. \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u062f\u0634\u0648\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0647 \u062e\u0635\u0648\u0635 \u0628\u0627 \u0631\u0634\u062f \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f.<\/p>\n<p>  \u062f\u0627\u0633\u062a\u0627\u0646 \u0634\u062e\u0635\u06cc \u0645\u0646<\/p>\n<p>\u0645\u0646 \u0628\u0631\u0627\u06cc \u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u0631 \u0628\u0627 \u062a\u0627\u0628\u0639 eval() \u062f\u0631 \u0627\u0648\u0627\u06cc\u0644 \u0633\u0641\u0631 \u062a\u0648\u0633\u0639\u0647 \u062e\u0648\u062f \u0645\u0648\u0627\u062c\u0647 \u0634\u062f\u0645. \u062f\u0631 \u0622\u0646 \u0632\u0645\u0627\u0646\u060c \u0627\u0628\u0632\u0627\u0631\u06cc \u062c\u0630\u0627\u0628 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0634\u062a\u0647 \u0647\u0627\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u06cc\u062f. \u0645\u0646 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0627\u062a\u0648\u0645\u0627\u0633\u06cc\u0648\u0646 \u0648\u0628 \u0648 \u062e\u0631\u0627\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645\u060c \u0639\u0645\u062f\u062a\u0627\u064b \u0628\u0631\u0627\u06cc \u0648\u0627\u06a9\u0634\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0632 \u0639\u0646\u0627\u0635\u0631 HTML. \u062f\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0645\u0648\u0627\u0631\u062f\u060c \u0622\u0646 \u0631\u0627 \u0628\u0647 \u062e\u0648\u0628\u06cc \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0631\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062e\u0637\u0631\u0627\u062a \u0648\u0627\u0642\u0639\u06cc eval() \u062f\u0631 \u0637\u0648\u0644 \u06a9\u0627\u0631 \u0645\u0646 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0634\u062e\u0635\u06cc Next.js \u0622\u0634\u06a9\u0627\u0631 \u0634\u062f. \u0645\u0646 \u0627\u0632 eval() \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0648\u06cc\u0627 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc TailwindCSS \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645\u060c \u0641\u06a9\u0631 \u0645\u06cc\u200c\u06a9\u0631\u062f\u0645 \u06a9\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f \u0631\u0627 \u0633\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0645\u062a\u0623\u0633\u0641\u0627\u0646\u0647\u060c \u0627\u06cc\u0646 \u062a\u0635\u0645\u06cc\u0645 \u0645\u0646\u062c\u0631 \u0628\u0647 \u06cc\u06a9 \u0645\u0634\u06a9\u0644 \u0627\u0633\u0627\u0633\u06cc \u0634\u062f \u06a9\u0647 \u062d\u062a\u06cc \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0646\u0634\u062f. \u0645\u0634\u06a9\u0648\u06a9 \u0628\u0647 \u0627\u06cc\u0646\u06a9\u0647 eval() \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0645\u0627\u0647\u06cc\u062a \u0646\u0627\u067e\u0627\u06cc\u062f\u0627\u0631\u0634 \u0645\u0642\u0635\u0631 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a\u060c \u0639\u0645\u06cc\u0642 \u062a\u0631 \u06a9\u0627\u0648\u0634 \u06a9\u0631\u062f\u0645\u2014\u0648 \u0645\u0637\u0645\u0626\u0646\u0627\u064b 100% \u062f\u0631\u0633\u062a \u0645\u06cc \u06af\u0641\u062a\u0645.<\/p>\n<p>\u0627\u06cc\u0646 \u062a\u062c\u0631\u0628\u0647 \u06cc\u0627\u062f\u0622\u0648\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u06cc \u0628\u0648\u062f \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0641\u0646\u0627\u0648\u0631\u06cc \u067e\u0648\u06cc\u0627 \u0628\u0647 \u0638\u0627\u0647\u0631 \u0628\u06cc\u200c\u0636\u0631\u0631 \u0627\u0632 \u06af\u0630\u0634\u062a\u0647 \u0647\u0646\u0648\u0632 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0634\u06a9\u0644\u0627\u062a \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u062f\u0631 \u062a\u0648\u0633\u0639\u0647 \u0645\u062f\u0631\u0646 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f. \u0627\u06cc\u0646 \u062f\u0631\u0633\u06cc \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u062f\u0627\u0646\u0633\u062a\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0627\u06cc\u062f \u0627\u0632 \u0634\u06cc\u0648\u0647\u200c\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0627\u0633\u062a\u0642\u0628\u0627\u0644 \u06a9\u0631\u062f \u0648 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0642\u062f\u06cc\u0645\u06cc \u0627\u062c\u062a\u0646\u0627\u0628 \u06a9\u0631\u062f\u060c \u062d\u062a\u06cc \u0627\u06af\u0631 \u0631\u0627\u0647 \u062d\u0644\u06cc \u0633\u0631\u06cc\u0639 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u0646\u062f.<\/p>\n<p>  \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0627\u0645\u0646 \u062a\u0631 \u0686\u06cc\u0633\u062a\u061f<\/p>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 eval() \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u06cc\u06a9 \u0631\u0627\u0647 \u062d\u0644 \u0622\u0633\u0627\u0646 \u0628\u0631\u0627\u06cc \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0627\u0635 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u0686\u0646\u062f\u06cc\u0646 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0627\u0645\u0646 \u062a\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0628\u0647 \u062c\u0627\u06cc \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<p>JSON.parse() \u0648 JSON.stringify()\u0627\u06af\u0631 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u062c\u0632\u06cc\u0647 \u06cc\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u062f\u0627\u0631\u06cc\u062f\u060c JSON.parse() \u0648 JSON.stringify() \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0627\u0645\u0646 \u062a\u0631\u06cc \u0647\u0633\u062a\u0646\u062f. \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0647\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u06cc\u0646 \u0627\u0645\u06a9\u0627\u0646 \u0631\u0627 \u0645\u06cc \u062f\u0647\u0646\u062f \u06a9\u0647 \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0633\u0627\u062e\u062a \u06cc\u0627\u0641\u062a\u0647 \u0628\u0647 \u0634\u06cc\u0648\u0647 \u0627\u06cc \u0627\u06cc\u0645\u0646 \u0648 \u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u06a9\u0627\u0631 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 JSON.parse()<\/p>\n<p>const jsonString = &#8216;{&#8220;name&#8221;: &#8220;John&#8221;, &#8220;age&#8221;: 30}&#8217;;<br \/>\nconst parsedData = JSON.parse(jsonString);<br \/>\nconsole.log(parsedData); \/\/ Outputs: {name: &#8220;John&#8221;, age: 30}<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0628\u0631 \u062e\u0644\u0627\u0641 eval()\u060c JSON.parse() \u0641\u0642\u0637 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0639\u062a\u0628\u0631 JSON \u0631\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u06a9\u062f \u062f\u0644\u062e\u0648\u0627\u0647 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0646\u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>Function() Constructor\u0627\u06af\u0631 \u06a9\u0627\u0645\u0644\u0627\u064b \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u067e\u0648\u06cc\u0627 \u062f\u0627\u0631\u06cc\u062f\u060c \u0633\u0627\u0632\u0646\u062f\u0647 Function() \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0645\u0637\u0645\u0626\u0646 \u062a\u0631\u06cc \u0628\u0631\u0627\u06cc eval(). \u0627\u06cc\u0646 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u062f\u06cc\u062f \u0627\u0632 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u06a9\u062f \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u0628\u0647 \u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u062d\u0644\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0646\u062f\u0627\u0631\u062f \u0648 \u062e\u0637\u0631 \u0639\u0648\u0627\u0631\u0636 \u062c\u0627\u0646\u0628\u06cc \u0646\u0627\u062e\u0648\u0627\u0633\u062a\u0647 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0628\u0639()<\/p>\n<p>const dynamicCode = &#8216;return 2 + 2&#8217;;<br \/>\nconst result = new Function(dynamicCode)(); \/\/ Executes the code safely<br \/>\nconsole.log(result); \/\/ Outputs: 4<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c Function() \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u062f\u06cc\u062f \u0627\u0632 \u0631\u0634\u062a\u0647 &#39;return 2 + 2&#39; \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0644\u06cc \u06cc\u0627 \u0633\u0631\u0627\u0633\u0631\u06cc \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0645\u06cc \u062f\u0647\u062f. eval().<\/p>\n<p>\u0627\u0644\u06af\u0648\u0647\u0627 \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0627\u06cc\u0645\u0646\u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u0647 \u0631\u0634\u062a\u0647\u200c\u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f\u060c \u0627\u0645\u0627 \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u0646\u062f\u0627\u0631\u0646\u062f\u060c \u0627\u0644\u06af\u0648\u0647\u0627 \u0648 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0627\u06cc\u0645\u0646 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u200c\u0647\u0627\u06cc \u0639\u0627\u0644\u06cc \u0647\u0633\u062a\u0646\u062f. \u0627\u0644\u0641\u0628\u0627\u06cc \u0627\u0644\u06af\u0648 \u0628\u0647 \u0634\u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u062f \u062f\u0631 \u0631\u0634\u062a\u0647 \u0647\u0627 \u062c\u0627\u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Template Literals<\/p>\n<p>const name = &#8216;John&#8217;;<br \/>\nconst greeting = `Hello, ${name}!`; \/\/ Safe way to embed dynamic data into strings<br \/>\nconsole.log(greeting); \/\/ Outputs: Hello, John!<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0644\u0641\u0627\u0638 \u0642\u0627\u0644\u0628 \u0648 \u0627\u062c\u062a\u0646\u0627\u0628 \u0627\u0632 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u062f \u067e\u0648\u06cc\u0627\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u062e\u06cc\u0627\u0644 \u0631\u0627\u062d\u062a \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0627\u06cc\u062c\u0627\u062f \u062e\u0637\u0631\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f.<\/p>\n<p>  \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0642\u0627\u0628\u0644 \u0642\u0628\u0648\u0644 \u0627\u0633\u062a eval()?<\/p>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u0627\u0632 \u0622\u0646 \u0627\u062c\u062a\u0646\u0627\u0628 \u06a9\u0646\u06cc\u062f eval()\u060c \u0645\u0648\u0627\u0631\u062f \u0646\u0627\u062f\u0631\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0644\u0627\u0632\u0645 \u0628\u0627\u0634\u062f. \u0627\u06af\u0631 \u062f\u0631 \u0645\u0648\u0642\u0639\u06cc\u062a\u06cc \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u06cc\u062f \u06a9\u0647 eval() \u0627\u062c\u062a\u0646\u0627\u0628 \u0646\u0627\u067e\u0630\u06cc\u0631 \u0627\u0633\u062a\u060c \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0686\u0646\u062f \u0646\u06a9\u062a\u0647 \u0628\u0631\u0627\u06cc \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0631\u0633\u0627\u0646\u062f\u0646 \u062e\u0637\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f:<\/p>\n<p>\u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u062d\u062f\u0648\u062f\u0647: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f eval() \u062f\u0631 \u062a\u0648\u0627\u0628\u0639 \u06cc\u0627 \u0645\u062d\u06cc\u0637 \u0647\u0627\u06cc \u0627\u06cc\u0632\u0648\u0644\u0647\u060c \u0648 \u0647\u0631\u06af\u0632 \u0648\u0631\u0648\u062f\u06cc \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u06a9\u0627\u0631\u0628\u0631 \u0631\u0627 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0647 \u0622\u0646 \u0627\u0631\u0633\u0627\u0644 \u0646\u06a9\u0646\u06cc\u062f eval().\u0648\u0631\u0648\u062f\u06cc \u0631\u0627 \u0636\u062f \u0639\u0641\u0648\u0646\u06cc \u06a9\u0646\u06cc\u062f: \u0627\u06af\u0631 \u0628\u0627\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f eval() \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627\u060c \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0648\u0631\u0648\u062f\u06cc \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062d\u0645\u0644\u0627\u062a \u062a\u0632\u0631\u06cc\u0642\u060c \u0636\u062f \u0639\u0641\u0648\u0646\u06cc \u0648 \u062a\u0627\u06cc\u06cc\u062f \u0634\u062f\u0647 \u0627\u0633\u062a.\u0628\u0627 \u0627\u062d\u062a\u06cc\u0627\u0637 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f: \u0627\u06af\u0631 \u06a9\u062f \u067e\u0648\u06cc\u0627 \u062a\u062d\u062a \u06a9\u0646\u062a\u0631\u0644 \u0634\u0645\u0627 \u0628\u0627\u0634\u062f (\u0645\u0627\u0646\u0646\u062f \u06a9\u062f\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0633\u0631\u0648\u0631)\u060c \u062e\u0637\u0631 \u06a9\u0645\u062a\u0631 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 eval() \u0647\u0646\u0648\u0632 \u0628\u0627\u06cc\u062f \u0628\u0627 \u0627\u062d\u062a\u06cc\u0627\u0637 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<p>  \u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc<\/p>\n<p>\u062f\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0645\u0648\u0627\u0631\u062f\u060c eval() \u0628\u0647 \u062f\u0644\u06cc\u0644 \u062e\u0637\u0631\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc\u060c \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u0628\u0631\u0627\u06cc \u0645\u0639\u0631\u0641\u06cc \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u062c\u062a\u0646\u0627\u0628 \u0634\u0648\u062f. \u062a\u0648\u0633\u0639\u0647\u200c\u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u06cc\u062f \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u200c\u0647\u0627\u06cc \u0627\u0645\u0646\u200c\u062a\u0631\u06cc \u0645\u0627\u0646\u0646\u062f JSON.parse()\u060c Function()\u060c \u06cc\u0627 \u0642\u0627\u0644\u0628\u200c\u0647\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0648 \u06a9\u062f\u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u062a\u0631\u062c\u06cc\u062d \u062f\u0647\u0646\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u0631\u0648\u06cc \u067e\u0631\u0648\u0698\u0647 \u0627\u06cc \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u062f \u0648 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u062f\u0627\u0631\u06cc\u062f eval()\u06a9\u062f\u0647\u0627\u06cc \u0633\u0646\u06af\u06cc\u0646\u060c \u0628\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06af\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0648 \u0628\u0647\u0628\u0648\u062f \u0627\u0645\u0646\u06cc\u062a \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u0648\u0642\u062a \u0628\u06af\u0630\u0627\u0631\u06cc\u062f. \u0647\u0645\u06cc\u0634\u0647 \u0628\u0647 \u06cc\u0627\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f: \u0641\u0642\u0637 \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 eval() \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u0646\u06cc\u0633\u062a \u06a9\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u062f\u0631\u0633\u062a\u06cc \u0627\u0633\u062a.<\/p>\n<p>\u0628\u0627 \u067e\u06cc\u0631\u0648\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644\u200c\u0647\u0627 \u0648 \u062f\u0631\u06a9 \u062e\u0637\u0631\u0627\u062a\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc\u200c\u062a\u0631 \u0648 \u0627\u06cc\u0645\u0646\u200c\u062a\u0631\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u0627\u0634\u06a9\u0627\u0644\u200c\u0632\u062f\u0627\u06cc\u06cc \u0622\u0646\u200c\u0647\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0628\u0627\u0634\u062f. \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u062d\u0633\u0627\u0628\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f eval() \u062f\u0631 \u0635\u0648\u0631\u062a \u0644\u0632\u0648\u0645 \u0628\u0631\u0627\u06cc \u0628\u0647\u0628\u0648\u062f \u0627\u06cc\u0645\u0646\u06cc \u0648 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062e\u0648\u062f\u060c \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0628\u0647 \u0645\u0646 \u0627\u0637\u0644\u0627\u0639 \u062f\u0647\u06cc\u062f \u06a9\u0647 \u062f\u0648\u0633\u062a \u062f\u0627\u0631\u06cc\u062f \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0628\u0647 \u0686\u0647 \u0645\u0648\u0636\u0648\u0639\u0627\u062a\u06cc \u0628\u067e\u0631\u062f\u0627\u0632\u0645! \u0646\u0638\u0631\u0627\u062a \u0634\u0645\u0627 \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u0627\u0633\u062a\u2665<\/p>\n<p>\u06a9\u062f \u0646\u0648\u06cc\u0633\u06cc \u0645\u0628\u0627\u0631\u06a9!<\/p>\n<div data-article-id=\"2108451\" id=\"article-body\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D9%85%D9%82%D8%AF%D9%85%D9%87\" >\u0645\u0642\u062f\u0645\u0647<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%DA%86%DB%8C%D8%B3%D8%AA_eval\" >\u0686\u06cc\u0633\u062a eval()?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D8%AC%D8%B0%D8%A7%D8%A8%DB%8C%D8%AA_%D8%A7%D8%B2_eval\" >\u062c\u0630\u0627\u0628\u06cc\u062a \u0627\u0632 eval()<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D8%AE%D8%B7%D8%B1%D8%A7%D8%AA_eval\" >\u062e\u0637\u0631\u0627\u062a eval()<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D9%86%DA%AF%D8%B1%D8%A7%D9%86%DB%8C_%D9%87%D8%A7%DB%8C_%D8%A7%D9%85%D9%86%DB%8C%D8%AA%DB%8C\" >\u0646\u06af\u0631\u0627\u0646\u06cc \u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D9%85%D8%B3%D8%A7%D8%A6%D9%84_%D9%85%D8%B1%D8%A8%D9%88%D8%B7_%D8%A8%D9%87_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF\" >\u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D8%A7%D8%B4%DA%A9%D8%A7%D9%84_%D8%B2%D8%AF%D8%A7%DB%8C%DB%8C_%DA%A9%D8%A7%D8%A8%D9%88%D8%B3_%D9%87%D8%A7\" >\u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u06a9\u0627\u0628\u0648\u0633 \u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D8%B1%D9%81%D8%AA%D8%A7%D8%B1_%D8%BA%DB%8C%D8%B1_%D9%82%D8%A7%D8%A8%D9%84_%D9%BE%DB%8C%D8%B4_%D8%A8%DB%8C%D9%86%DB%8C\" >\u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631 \u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D8%AF%D8%A7%D8%B3%D8%AA%D8%A7%D9%86_%D8%B4%D8%AE%D8%B5%DB%8C_%D9%85%D9%86\" >\u062f\u0627\u0633\u062a\u0627\u0646 \u0634\u062e\u0635\u06cc \u0645\u0646<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D8%AC%D8%A7%DB%8C%DA%AF%D8%B2%DB%8C%D9%86_%D9%87%D8%A7%DB%8C_%D8%A7%D9%85%D9%86_%D8%AA%D8%B1_%DA%86%DB%8C%D8%B3%D8%AA%D8%9F\" >\u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0627\u0645\u0646 \u062a\u0631 \u0686\u06cc\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%DA%86%D9%87_%D8%B2%D9%85%D8%A7%D9%86%DB%8C_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_%D8%A2%D9%86_%D9%82%D8%A7%D8%A8%D9%84_%D9%82%D8%A8%D9%88%D9%84_%D8%A7%D8%B3%D8%AA_eval\" >\u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0642\u0627\u0628\u0644 \u0642\u0628\u0648\u0644 \u0627\u0633\u062a eval()?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/nabfollower.com\/blog\/why-eval-could-be-your-javascript-codes-worst-enemy-i7p\/#%D9%86%D8%AA%DB%8C%D8%AC%D9%87_%DA%AF%DB%8C%D8%B1%DB%8C\" >\u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D9%82%D8%AF%D9%85%D9%87\"><\/span>\n<p>  \u0645\u0642\u062f\u0645\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a <code>eval()<\/code> \u062a\u0627\u0628\u0639 \u0628\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06cc\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u0646\u062f. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0631\u0627\u062d\u062a \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>eval()<\/code> \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0645\u0634\u06a9\u0644\u0627\u062a \u062c\u062f\u06cc \u0627\u0632 \u062c\u0645\u0644\u0647 \u0622\u0633\u06cc\u0628 \u067e\u0630\u06cc\u0631\u06cc \u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc\u060c \u06a9\u0627\u0647\u0634 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0631\u0627 \u0627\u0632 \u06a9\u0627\u0631 \u0628\u06cc\u0646\u062f\u0627\u0632\u062f. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062f\u0644\u06cc\u0644 \u0622\u0646 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f <code>eval()<\/code> \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u062f\u060c \u062e\u0637\u0631\u0627\u062a \u0622\u0646\u060c \u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0627\u0645\u0646 \u062a\u0631\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0647\u0645\u0627\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%DA%86%DB%8C%D8%B3%D8%AA_eval\"><\/span>\n<p>  \u0686\u06cc\u0633\u062a <code>eval()<\/code>?<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><code>eval()<\/code>  \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0633\u0631\u0627\u0633\u0631\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0645\u06cc \u06af\u06cc\u0631\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f. \u0631\u0634\u062a\u0647 \u0628\u0647 <code>eval()<\/code> \u062a\u0648\u0633\u0637 \u0645\u0641\u0633\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062a\u062c\u0632\u06cc\u0647 \u0648 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u067e\u0648\u06cc\u0627 \u0634\u0648\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">expression<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">2 + 2<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nf\">eval<\/span><span class=\"p\">(<\/span><span class=\"nx\">expression<\/span><span class=\"p\">));<\/span> <span class=\"c1\">\/\/ Outputs: 4<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627\u060c <code>eval()<\/code> \u0631\u0634\u062a\u0647 &#39;2 + 2&#39; \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0646\u062a\u06cc\u062c\u0647 4 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AC%D8%B0%D8%A7%D8%A8%DB%8C%D8%AA_%D8%A7%D8%B2_eval\"><\/span>\n<p>  \u062c\u0630\u0627\u0628\u06cc\u062a \u0627\u0632 <code>eval()<\/code><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062c\u0630\u0627\u0628\u06cc\u062a \u0627\u0635\u0644\u06cc \u0627\u0632 <code>eval()<\/code> \u062f\u0631 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0631\u0634\u062a\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u06a9\u062f \u0646\u0647\u0641\u062a\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0627\u0646\u0639\u0637\u0627\u0641\u200c\u067e\u0630\u06cc\u0631\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u06a9\u062f \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627\u060c \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631\u060c \u06cc\u0627 \u0627\u0646\u062c\u0627\u0645 \u06a9\u0627\u0631\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u0633\u0631\u06cc\u0627\u0644\u200c\u0633\u0627\u0632\u06cc \u0648 \u0633\u0631\u06cc\u0627\u0644\u200c\u0632\u062f\u0627\u06cc\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0631\u0627\u0647 \u062d\u0644\u06cc \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u062e\u0637\u0631\u0627\u062a \u0622\u0646 \u062f\u0631 \u0627\u06a9\u062b\u0631 \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 \u0631\u0627\u062d\u062a\u06cc \u0627\u0633\u062a.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AE%D8%B7%D8%B1%D8%A7%D8%AA_eval\"><\/span>\n<p>  \u062e\u0637\u0631\u0627\u062a <code>eval()<\/code><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"%D9%86%DA%AF%D8%B1%D8%A7%D9%86%DB%8C_%D9%87%D8%A7%DB%8C_%D8%A7%D9%85%D9%86%DB%8C%D8%AA%DB%8C\"><\/span>\n<p>  \u0646\u06af\u0631\u0627\u0646\u06cc \u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645 \u062a\u0631\u06cc\u0646 \u062e\u0637\u0631\u0627\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 <code>eval()<\/code> \u0627\u0645\u0646\u06cc\u062a \u0627\u0633\u062a. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 <code>eval()<\/code> \u0647\u0631 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0627\u06af\u0631 \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0631\u0627 \u062f\u0631 \u0645\u0639\u0631\u0636 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f\u0647\u0627\u06cc \u0645\u062e\u0631\u0628 \u0642\u0631\u0627\u0631 \u062f\u0647\u062f. \u0627\u06cc\u0646 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0632\u0645\u0627\u0646\u06cc \u062e\u0637\u0631\u0646\u0627\u06a9 \u0627\u0633\u062a \u06a9\u0647 \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631\u06af\u06cc\u0631 \u0628\u0627\u0634\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u062a\u0632\u0631\u06cc\u0642 \u06a9\u062f \u0645\u062e\u0631\u0628<\/p>\n<p>\u0633\u0646\u0627\u0631\u06cc\u0648\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631 \u0628\u0647 \u0622\u0646 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f <code>eval()<\/code>:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ Imagine alert() could be any other kind of JS harmful function...<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">userInput<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">alert(\"Hacked!\")<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span> <span class=\"c1\">\/\/ Malicious input<\/span>\n<span class=\"nf\">eval<\/span><span class=\"p\">(<\/span><span class=\"nx\">userInput<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Executes malicious code<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u06cc\u06a9 \u0645\u0647\u0627\u062c\u0645 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u062f \u06a9\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u06cc\u06a9 \u0639\u0645\u0644 \u0645\u0636\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u0646\u0645\u0627\u06cc\u0634 \u062c\u0639\u0628\u0647 \u0647\u0634\u062f\u0627\u0631 \u0628\u0627 \u0648\u0631\u0648\u062f\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0644\u0627\u0647\u0628\u0631\u062f\u0627\u0631\u06cc \u0641\u06cc\u0634\u06cc\u0646\u06af\u060c \u0633\u0631\u0642\u062a \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u06cc\u0627 \u0627\u0646\u062c\u0627\u0645 \u0633\u0627\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u062e\u0631\u0628. \u0627\u06cc\u0646 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062d\u0645\u0644\u0647 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u06cc\u0646 \u0633\u0627\u06cc\u062a\u06cc (XSS) \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>eval()<\/code> \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628 \u062f\u0631\u06cc \u0628\u0631\u0627\u06cc \u0645\u0647\u0627\u062c\u0645\u0627\u0646 \u0628\u0631\u0627\u06cc \u062a\u0632\u0631\u06cc\u0642 \u06a9\u062f \u062f\u0644\u062e\u0648\u0627\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0627\u0632 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06a9\u0644 \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u062f\u0631 \u0645\u0639\u0631\u0636 \u062e\u0637\u0631 \u0642\u0631\u0627\u0631 \u062f\u0647\u062f.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%D9%85%D8%B3%D8%A7%D8%A6%D9%84_%D9%85%D8%B1%D8%A8%D9%88%D8%B7_%D8%A8%D9%87_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF\"><\/span>\n<p>  \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><code>eval()<\/code>  \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0632\u06cc\u0631\u0627 \u0645\u0648\u062a\u0648\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0645\u062c\u0628\u0648\u0631 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u06a9\u062f \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u062a\u0641\u0633\u06cc\u0631 \u0648 \u0627\u062c\u0631\u0627 \u06a9\u0646\u062f \u06a9\u0647 \u0627\u0632 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u062e\u0627\u0635\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f. \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0645\u0627\u0646\u0646\u062f V8\u060c \u06a9\u062f \u0627\u0633\u062a\u0627\u062a\u06cc\u06a9 \u0631\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0627\u0645\u067e\u0627\u06cc\u0644 \u0628\u0647\u06cc\u0646\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f\u060c \u0627\u0645\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u067e\u0648\u06cc\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0627\u06cc\u0646 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc\u200c\u0647\u0627 \u063a\u06cc\u0631\u0641\u0639\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u0646\u062f\u062a\u0631 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u062a\u0627\u062b\u06cc\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f<br \/>\u0645\u0648\u0642\u0639\u06cc\u062a\u06cc \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 <code>eval()<\/code> \u062f\u0631 \u06cc\u06a9 \u062d\u0644\u0642\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u062d\u0631\u0627\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"k\">for <\/span><span class=\"p\">(<\/span><span class=\"kd\">let<\/span> <span class=\"nx\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"nx\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">100000<\/span><span class=\"p\">;<\/span> <span class=\"nx\">i<\/span><span class=\"o\">++<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nf\">eval<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">var x = i * i<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u06cc\u0646 \u06a9\u062f \u0647\u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 \u0646\u0633\u062e\u0647 \u063a\u06cc\u0631 \u067e\u0648\u06cc\u0627 \u0627\u0632 \u062d\u0644\u0642\u0647 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u062f \u0627\u0645\u0627 \u0633\u0631\u0628\u0627\u0631 \u062a\u0641\u0633\u06cc\u0631 \u0648 \u0627\u062c\u0631\u0627\u06cc \u0631\u0634\u062a\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc \u06a9\u0646\u062f. <code>'var x = i * i'<\/code> \u062f\u0631 \u0647\u0631 \u062a\u06a9\u0631\u0627\u0631 \u0627\u06cc\u0646 \u0633\u0631\u0628\u0627\u0631 \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u06a9\u0646\u062f \u06a9\u0646\u062f\u060c \u0628\u0647 \u062e\u0635\u0648\u0635 \u062f\u0631 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0632\u0631\u06af\u062a\u0631 \u06cc\u0627 \u0645\u062d\u06cc\u0637 \u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%D8%A7%D8%B4%DA%A9%D8%A7%D9%84_%D8%B2%D8%AF%D8%A7%DB%8C%DB%8C_%DA%A9%D8%A7%D8%A8%D9%88%D8%B3_%D9%87%D8%A7\"><\/span>\n<p>  \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u06a9\u0627\u0628\u0648\u0633 \u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u0648\u0642\u062a\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f <code>eval()<\/code>\u060c \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0633\u062e\u062a \u062a\u0631 \u0645\u06cc \u0634\u0648\u062f. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 <code>eval()<\/code> \u06a9\u062f\u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0631\u062f\u06cc\u0627\u0628\u06cc \u0622\u0646\u0686\u0647 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0645\u062d\u0644 \u0648\u0642\u0648\u0639 \u062e\u0637\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062f\u0634\u0648\u0627\u0631 \u06a9\u0646\u062f. \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0631 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0627\u0633\u062a\u0627\u062a\u06cc\u06a9 \u0648 <code>eval()<\/code> \u0627\u0632 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0635\u062d\u06cc\u062d \u06a9\u062f \u0627\u06cc\u0646 \u0627\u0628\u0632\u0627\u0631\u0647\u0627 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0648 \u062a\u0634\u062e\u06cc\u0635 \u0648 \u0631\u0641\u0639 \u0645\u0634\u06a9\u0644\u0627\u062a \u0631\u0627 \u062f\u0634\u0648\u0627\u0631\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u062e\u0637\u0627\u0647\u0627\u06cc \u067e\u0646\u0647\u0627\u0646<br \/>\u06a9\u062f \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u06cc\u06a9 \u062e\u0637\u0627 \u062f\u0631 \u062f\u0627\u062e\u0644 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f <code>eval()<\/code>:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"nf\">eval<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">console.log(unknownVariable)<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Throws error but hard to trace<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u062e\u0637\u0627\u06cc unknownVariable is not defined \u067e\u0631\u062a\u0627\u0628 \u0645\u06cc \u0634\u0648\u062f\u060c \u0627\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u06a9\u0647 \u06a9\u062f \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f. <code>eval()<\/code>\u060c \u0631\u062f\u06cc\u0627\u0628\u06cc \u0645\u0646\u0628\u0639 \u0645\u0634\u06a9\u0644 \u0686\u0627\u0644\u0634 \u0628\u0631\u0627\u0646\u06af\u06cc\u0632\u062a\u0631 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u062e\u0633\u062a\u0647 \u06a9\u0646\u0646\u062f\u0647 \u0648 \u0648\u0642\u062a \u06af\u06cc\u0631 \u0634\u0648\u062f.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%D8%B1%D9%81%D8%AA%D8%A7%D8%B1_%D8%BA%DB%8C%D8%B1_%D9%82%D8%A7%D8%A8%D9%84_%D9%BE%DB%8C%D8%B4_%D8%A8%DB%8C%D9%86%DB%8C\"><\/span>\n<p>  \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631 \u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u062e\u0637\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0627\u0632 <code>eval()<\/code> \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0627\u0633\u062a. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u06a9\u062f \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631 \u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u062f\u060c \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u062f \u06cc\u0627 \u0628\u0627 \u0633\u0627\u06cc\u0631 \u0628\u062e\u0634 \u0647\u0627\u06cc \u06a9\u062f \u0628\u0647 \u0631\u0648\u0634 \u0647\u0627\u06cc \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647 \u0627\u06cc \u062a\u0639\u0627\u0645\u0644 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f. \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627\u0639\u062b \u062e\u0631\u0627\u0628\u06cc \u06cc\u0627 \u0627\u0634\u06a9\u0627\u0644\u0627\u062a\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0628\u0627\u0632\u062a\u0648\u0644\u06cc\u062f \u0622\u0646 \u0647\u0627 \u062f\u0634\u0648\u0627\u0631 \u0627\u0633\u062a.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u0645\u0633\u0627\u0626\u0644 \u0645\u062d\u062f\u0648\u062f\u0647<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">let<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">10<\/span><span class=\"p\">;<\/span>\n<span class=\"nf\">eval<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">x = x + 5<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Modifies the global variable `x`<\/span>\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">x<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Outputs: 15<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c <code>eval()<\/code> \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 x \u0631\u0627 \u062f\u0631 \u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u062f\u0647\u062f\u060c \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647 \u062f\u0631 \u0631\u0641\u062a\u0627\u0631 \u062f\u0631 \u062c\u0627\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0648\u062f. \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u062f\u0634\u0648\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0647 \u062e\u0635\u0648\u0635 \u0628\u0627 \u0631\u0634\u062f \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AF%D8%A7%D8%B3%D8%AA%D8%A7%D9%86_%D8%B4%D8%AE%D8%B5%DB%8C_%D9%85%D9%86\"><\/span>\n<p>  \u062f\u0627\u0633\u062a\u0627\u0646 \u0634\u062e\u0635\u06cc \u0645\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u0646 \u0628\u0631\u0627\u06cc \u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u0631 \u0628\u0627 \u062a\u0627\u0628\u0639 eval() \u062f\u0631 \u0627\u0648\u0627\u06cc\u0644 \u0633\u0641\u0631 \u062a\u0648\u0633\u0639\u0647 \u062e\u0648\u062f \u0645\u0648\u0627\u062c\u0647 \u0634\u062f\u0645. \u062f\u0631 \u0622\u0646 \u0632\u0645\u0627\u0646\u060c \u0627\u0628\u0632\u0627\u0631\u06cc \u062c\u0630\u0627\u0628 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0634\u062a\u0647 \u0647\u0627\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u06cc\u062f. \u0645\u0646 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0627\u062a\u0648\u0645\u0627\u0633\u06cc\u0648\u0646 \u0648\u0628 \u0648 \u062e\u0631\u0627\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645\u060c \u0639\u0645\u062f\u062a\u0627\u064b \u0628\u0631\u0627\u06cc \u0648\u0627\u06a9\u0634\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0632 \u0639\u0646\u0627\u0635\u0631 HTML. \u062f\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0645\u0648\u0627\u0631\u062f\u060c \u0622\u0646 \u0631\u0627 \u0628\u0647 \u062e\u0648\u0628\u06cc \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0631\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062e\u0637\u0631\u0627\u062a \u0648\u0627\u0642\u0639\u06cc eval() \u062f\u0631 \u0637\u0648\u0644 \u06a9\u0627\u0631 \u0645\u0646 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0634\u062e\u0635\u06cc Next.js \u0622\u0634\u06a9\u0627\u0631 \u0634\u062f. \u0645\u0646 \u0627\u0632 eval() \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0648\u06cc\u0627 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc TailwindCSS \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645\u060c \u0641\u06a9\u0631 \u0645\u06cc\u200c\u06a9\u0631\u062f\u0645 \u06a9\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f \u0631\u0627 \u0633\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0645\u062a\u0623\u0633\u0641\u0627\u0646\u0647\u060c \u0627\u06cc\u0646 \u062a\u0635\u0645\u06cc\u0645 \u0645\u0646\u062c\u0631 \u0628\u0647 \u06cc\u06a9 \u0645\u0634\u06a9\u0644 \u0627\u0633\u0627\u0633\u06cc \u0634\u062f \u06a9\u0647 \u062d\u062a\u06cc \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0646\u0634\u062f. \u0645\u0634\u06a9\u0648\u06a9 \u0628\u0647 \u0627\u06cc\u0646\u06a9\u0647 eval() \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0645\u0627\u0647\u06cc\u062a \u0646\u0627\u067e\u0627\u06cc\u062f\u0627\u0631\u0634 \u0645\u0642\u0635\u0631 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a\u060c \u0639\u0645\u06cc\u0642 \u062a\u0631 \u06a9\u0627\u0648\u0634 \u06a9\u0631\u062f\u0645\u2014\u0648 \u0645\u0637\u0645\u0626\u0646\u0627\u064b 100% \u062f\u0631\u0633\u062a \u0645\u06cc \u06af\u0641\u062a\u0645.<\/p>\n<p>\u0627\u06cc\u0646 \u062a\u062c\u0631\u0628\u0647 \u06cc\u0627\u062f\u0622\u0648\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u06cc \u0628\u0648\u062f \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0641\u0646\u0627\u0648\u0631\u06cc \u067e\u0648\u06cc\u0627 \u0628\u0647 \u0638\u0627\u0647\u0631 \u0628\u06cc\u200c\u0636\u0631\u0631 \u0627\u0632 \u06af\u0630\u0634\u062a\u0647 \u0647\u0646\u0648\u0632 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0634\u06a9\u0644\u0627\u062a \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u062f\u0631 \u062a\u0648\u0633\u0639\u0647 \u0645\u062f\u0631\u0646 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f. \u0627\u06cc\u0646 \u062f\u0631\u0633\u06cc \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u062f\u0627\u0646\u0633\u062a\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0627\u06cc\u062f \u0627\u0632 \u0634\u06cc\u0648\u0647\u200c\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0627\u0633\u062a\u0642\u0628\u0627\u0644 \u06a9\u0631\u062f \u0648 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0642\u062f\u06cc\u0645\u06cc \u0627\u062c\u062a\u0646\u0627\u0628 \u06a9\u0631\u062f\u060c \u062d\u062a\u06cc \u0627\u06af\u0631 \u0631\u0627\u0647 \u062d\u0644\u06cc \u0633\u0631\u06cc\u0639 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AC%D8%A7%DB%8C%DA%AF%D8%B2%DB%8C%D9%86_%D9%87%D8%A7%DB%8C_%D8%A7%D9%85%D9%86_%D8%AA%D8%B1_%DA%86%DB%8C%D8%B3%D8%AA%D8%9F\"><\/span>\n<p>  \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0627\u0645\u0646 \u062a\u0631 \u0686\u06cc\u0633\u062a\u061f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 <code>eval()<\/code> \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u06cc\u06a9 \u0631\u0627\u0647 \u062d\u0644 \u0622\u0633\u0627\u0646 \u0628\u0631\u0627\u06cc \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0627\u0635 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u0686\u0646\u062f\u06cc\u0646 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0627\u0645\u0646 \u062a\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0628\u0647 \u062c\u0627\u06cc \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<p><u><strong>JSON.parse() \u0648 JSON.stringify()<\/strong><\/u><br \/>\u0627\u06af\u0631 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u062c\u0632\u06cc\u0647 \u06cc\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u062f\u0627\u0631\u06cc\u062f\u060c JSON.parse() \u0648 JSON.stringify() \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0627\u0645\u0646 \u062a\u0631\u06cc \u0647\u0633\u062a\u0646\u062f. \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0647\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u06cc\u0646 \u0627\u0645\u06a9\u0627\u0646 \u0631\u0627 \u0645\u06cc \u062f\u0647\u0646\u062f \u06a9\u0647 \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0633\u0627\u062e\u062a \u06cc\u0627\u0641\u062a\u0647 \u0628\u0647 \u0634\u06cc\u0648\u0647 \u0627\u06cc \u0627\u06cc\u0645\u0646 \u0648 \u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u06a9\u0627\u0631 \u06a9\u0646\u06cc\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 JSON.parse()<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">jsonString<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">{\"name\": \"John\", \"age\": 30}<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">parsedData<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">JSON<\/span><span class=\"p\">.<\/span><span class=\"nf\">parse<\/span><span class=\"p\">(<\/span><span class=\"nx\">jsonString<\/span><span class=\"p\">);<\/span>\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">parsedData<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Outputs: {name: \"John\", age: 30}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0628\u0631 \u062e\u0644\u0627\u0641 <code>eval()<\/code>\u060c JSON.parse() \u0641\u0642\u0637 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0639\u062a\u0628\u0631 JSON \u0631\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u06a9\u062f \u062f\u0644\u062e\u0648\u0627\u0647 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0646\u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong><u>Function() Constructor<\/u><\/strong><br \/>\u0627\u06af\u0631 \u06a9\u0627\u0645\u0644\u0627\u064b \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u067e\u0648\u06cc\u0627 \u062f\u0627\u0631\u06cc\u062f\u060c \u0633\u0627\u0632\u0646\u062f\u0647 Function() \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0645\u0637\u0645\u0626\u0646 \u062a\u0631\u06cc \u0628\u0631\u0627\u06cc <code>eval()<\/code>. \u0627\u06cc\u0646 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u062f\u06cc\u062f \u0627\u0632 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u06a9\u062f \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u0628\u0647 \u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u062d\u0644\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0646\u062f\u0627\u0631\u062f \u0648 \u062e\u0637\u0631 \u0639\u0648\u0627\u0631\u0636 \u062c\u0627\u0646\u0628\u06cc \u0646\u0627\u062e\u0648\u0627\u0633\u062a\u0647 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0628\u0639()<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">dynamicCode<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">return 2 + 2<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">result<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Function<\/span><span class=\"p\">(<\/span><span class=\"nx\">dynamicCode<\/span><span class=\"p\">)();<\/span> <span class=\"c1\">\/\/ Executes the code safely<\/span>\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Outputs: 4<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c Function() \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u062f\u06cc\u062f \u0627\u0632 \u0631\u0634\u062a\u0647 &#39;return 2 + 2&#39; \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0644\u06cc \u06cc\u0627 \u0633\u0631\u0627\u0633\u0631\u06cc \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0645\u06cc \u062f\u0647\u062f. <code>eval()<\/code>.<\/p>\n<p><u><strong>\u0627\u0644\u06af\u0648\u0647\u0627 \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0627\u06cc\u0645\u0646<\/strong><\/u><br \/>\u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u0647 \u0631\u0634\u062a\u0647\u200c\u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f\u060c \u0627\u0645\u0627 \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u0646\u062f\u0627\u0631\u0646\u062f\u060c \u0627\u0644\u06af\u0648\u0647\u0627 \u0648 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0627\u06cc\u0645\u0646 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u200c\u0647\u0627\u06cc \u0639\u0627\u0644\u06cc \u0647\u0633\u062a\u0646\u062f. \u0627\u0644\u0641\u0628\u0627\u06cc \u0627\u0644\u06af\u0648 \u0628\u0647 \u0634\u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u062f \u062f\u0631 \u0631\u0634\u062a\u0647 \u0647\u0627 \u062c\u0627\u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Template Literals<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">John<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">greeting<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">`Hello, <\/span><span class=\"p\">${<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"s2\">!`<\/span><span class=\"p\">;<\/span> <span class=\"c1\">\/\/ Safe way to embed dynamic data into strings<\/span>\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">greeting<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Outputs: Hello, John!<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0644\u0641\u0627\u0638 \u0642\u0627\u0644\u0628 \u0648 \u0627\u062c\u062a\u0646\u0627\u0628 \u0627\u0632 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u062f \u067e\u0648\u06cc\u0627\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u062e\u06cc\u0627\u0644 \u0631\u0627\u062d\u062a \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0627\u06cc\u062c\u0627\u062f \u062e\u0637\u0631\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%DA%86%D9%87_%D8%B2%D9%85%D8%A7%D9%86%DB%8C_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_%D8%A2%D9%86_%D9%82%D8%A7%D8%A8%D9%84_%D9%82%D8%A8%D9%88%D9%84_%D8%A7%D8%B3%D8%AA_eval\"><\/span>\n<p>  \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0642\u0627\u0628\u0644 \u0642\u0628\u0648\u0644 \u0627\u0633\u062a <code>eval()<\/code>?<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u0627\u0632 \u0622\u0646 \u0627\u062c\u062a\u0646\u0627\u0628 \u06a9\u0646\u06cc\u062f <code>eval()<\/code>\u060c \u0645\u0648\u0627\u0631\u062f \u0646\u0627\u062f\u0631\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0644\u0627\u0632\u0645 \u0628\u0627\u0634\u062f. \u0627\u06af\u0631 \u062f\u0631 \u0645\u0648\u0642\u0639\u06cc\u062a\u06cc \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u06cc\u062f \u06a9\u0647 <code>eval()<\/code> \u0627\u062c\u062a\u0646\u0627\u0628 \u0646\u0627\u067e\u0630\u06cc\u0631 \u0627\u0633\u062a\u060c \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0686\u0646\u062f \u0646\u06a9\u062a\u0647 \u0628\u0631\u0627\u06cc \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0631\u0633\u0627\u0646\u062f\u0646 \u062e\u0637\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f:<\/p>\n<p><strong>\u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u062d\u062f\u0648\u062f\u0647<\/strong>: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>eval()<\/code> \u062f\u0631 \u062a\u0648\u0627\u0628\u0639 \u06cc\u0627 \u0645\u062d\u06cc\u0637 \u0647\u0627\u06cc \u0627\u06cc\u0632\u0648\u0644\u0647\u060c \u0648 \u0647\u0631\u06af\u0632 \u0648\u0631\u0648\u062f\u06cc \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u06a9\u0627\u0631\u0628\u0631 \u0631\u0627 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0647 \u0622\u0646 \u0627\u0631\u0633\u0627\u0644 \u0646\u06a9\u0646\u06cc\u062f <code>eval()<\/code>.<br \/><strong>\u0648\u0631\u0648\u062f\u06cc \u0631\u0627 \u0636\u062f \u0639\u0641\u0648\u0646\u06cc \u06a9\u0646\u06cc\u062f<\/strong>: \u0627\u06af\u0631 \u0628\u0627\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>eval()<\/code> \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u067e\u0648\u06cc\u0627\u060c \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0648\u0631\u0648\u062f\u06cc \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062d\u0645\u0644\u0627\u062a \u062a\u0632\u0631\u06cc\u0642\u060c \u0636\u062f \u0639\u0641\u0648\u0646\u06cc \u0648 \u062a\u0627\u06cc\u06cc\u062f \u0634\u062f\u0647 \u0627\u0633\u062a.<br \/><strong>\u0628\u0627 \u0627\u062d\u062a\u06cc\u0627\u0637 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f<\/strong>: \u0627\u06af\u0631 \u06a9\u062f \u067e\u0648\u06cc\u0627 \u062a\u062d\u062a \u06a9\u0646\u062a\u0631\u0644 \u0634\u0645\u0627 \u0628\u0627\u0634\u062f (\u0645\u0627\u0646\u0646\u062f \u06a9\u062f\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0633\u0631\u0648\u0631)\u060c \u062e\u0637\u0631 \u06a9\u0645\u062a\u0631 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 <code>eval()<\/code> \u0647\u0646\u0648\u0632 \u0628\u0627\u06cc\u062f \u0628\u0627 \u0627\u062d\u062a\u06cc\u0627\u0637 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D9%86%D8%AA%DB%8C%D8%AC%D9%87_%DA%AF%DB%8C%D8%B1%DB%8C\"><\/span>\n<p>  \u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0645\u0648\u0627\u0631\u062f\u060c <code>eval()<\/code> \u0628\u0647 \u062f\u0644\u06cc\u0644 \u062e\u0637\u0631\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc\u060c \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u0628\u0631\u0627\u06cc \u0645\u0639\u0631\u0641\u06cc \u0631\u0641\u062a\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u062c\u062a\u0646\u0627\u0628 \u0634\u0648\u062f. <br \/>\u062a\u0648\u0633\u0639\u0647\u200c\u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u06cc\u062f \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u200c\u0647\u0627\u06cc \u0627\u0645\u0646\u200c\u062a\u0631\u06cc \u0645\u0627\u0646\u0646\u062f JSON.parse()\u060c Function()\u060c \u06cc\u0627 \u0642\u0627\u0644\u0628\u200c\u0647\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0648 \u06a9\u062f\u0647\u0627\u06cc \u067e\u0648\u06cc\u0627 \u062a\u0631\u062c\u06cc\u062d \u062f\u0647\u0646\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u0631\u0648\u06cc \u067e\u0631\u0648\u0698\u0647 \u0627\u06cc \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u062f \u0648 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u062f\u0627\u0631\u06cc\u062f <code>eval()<\/code>\u06a9\u062f\u0647\u0627\u06cc \u0633\u0646\u06af\u06cc\u0646\u060c \u0628\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06af\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0648 \u0628\u0647\u0628\u0648\u062f \u0627\u0645\u0646\u06cc\u062a \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u0648\u0642\u062a \u0628\u06af\u0630\u0627\u0631\u06cc\u062f. \u0647\u0645\u06cc\u0634\u0647 \u0628\u0647 \u06cc\u0627\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f: \u0641\u0642\u0637 \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 <code>eval()<\/code> \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u0646\u06cc\u0633\u062a \u06a9\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u062f\u0631\u0633\u062a\u06cc \u0627\u0633\u062a.<\/p>\n<p>\u0628\u0627 \u067e\u06cc\u0631\u0648\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644\u200c\u0647\u0627 \u0648 \u062f\u0631\u06a9 \u062e\u0637\u0631\u0627\u062a\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc\u200c\u062a\u0631 \u0648 \u0627\u06cc\u0645\u0646\u200c\u062a\u0631\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u0627\u0634\u06a9\u0627\u0644\u200c\u0632\u062f\u0627\u06cc\u06cc \u0622\u0646\u200c\u0647\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0628\u0627\u0634\u062f. \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u062d\u0633\u0627\u0628\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f <code>eval()<\/code> \u062f\u0631 \u0635\u0648\u0631\u062a \u0644\u0632\u0648\u0645 \u0628\u0631\u0627\u06cc \u0628\u0647\u0628\u0648\u062f \u0627\u06cc\u0645\u0646\u06cc \u0648 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062e\u0648\u062f\u060c \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0628\u0647 \u0645\u0646 \u0627\u0637\u0644\u0627\u0639 \u062f\u0647\u06cc\u062f \u06a9\u0647 \u062f\u0648\u0633\u062a \u062f\u0627\u0631\u06cc\u062f \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0628\u0647 \u0686\u0647 \u0645\u0648\u0636\u0648\u0639\u0627\u062a\u06cc \u0628\u067e\u0631\u062f\u0627\u0632\u0645! \u0646\u0638\u0631\u0627\u062a \u0634\u0645\u0627 \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u0627\u0633\u062a\u2665<\/p>\n<p><strong>\u06a9\u062f \u0646\u0648\u06cc\u0633\u06cc \u0645\u0628\u0627\u0631\u06a9!<\/strong><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Summarize this content to 400 words in Persian Lang \u0645\u0642\u062f\u0645\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a eval() \u062a\u0627\u0628\u0639 \u0628\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06cc\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u0646\u062f. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0631\u0627\u062d\u062a \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 eval() \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0645\u0634\u06a9\u0644\u0627\u062a &hellip;<\/p>\n","protected":false},"author":2,"featured_media":84329,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-84328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/84328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/comments?post=84328"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/84328\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/84329"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=84328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=84328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=84328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}