{"id":24670,"date":"2023-05-25T00:45:20","date_gmt":"2023-05-24T21:15:20","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/does-nan-actually-means-not-a-number-5acf\/"},"modified":"2023-05-25T00:45:20","modified_gmt":"2023-05-24T21:15:20","slug":"does-nan-actually-means-not-a-number-5acf","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/does-nan-actually-means-not-a-number-5acf\/","title":{"rendered":"\u0622\u06cc\u0627 NaN \u062f\u0631 \u0648\u0627\u0642\u0639 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u06cc\u06a9 \u0639\u062f\u062f \u0646\u06cc\u0633\u062a\u061f"},"content":{"rendered":"
\n

\u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0645\u0627 \u0628\u0627\u06cc\u062f \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645:<\/p>\n

\n
var a =  13 \/ \"bar\"; \n\nconsole.log(a); \/\/ NaN\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0647\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u0628\u062f\u0648\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0647\u0631 \u062f\u0648 \u0639\u0645\u0644\u0648\u0646\u062f \u0627\u0639\u062f\u0627\u062f \u0628\u0627\u0634\u0646\u062f \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645\u060c \u0645\u0646\u062c\u0631 \u0628\u0647 \u0639\u062f\u0645 \u062a\u0648\u0644\u06cc\u062f \u06cc\u06a9 \u0639\u062f\u062f \u0645\u0639\u062a\u0628\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 NaN<\/strong>.<\/p>\n
\u0627\u0632 \u0639\u0645\u0644\u06cc\u0627\u062a \u0641\u0648\u0642\u060c a NaN \u0627\u0633\u062a \u0648 \u0627\u06af\u0631 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645:<\/p>\n
\n
console.log(typeof a === \"number\") \/\/ true\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0627\u0632 \u0628\u0627\u0644\u0627\u060c \u0627\u06af\u0631 NaN \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0639\u062f\u062f \u0646\u06cc\u0633\u062a\u060c \u0627\u0632 \u0628\u0627\u0644\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u06af\u0641\u062a \u06a9\u0647 “\u0646\u0648\u0639 \u063a\u06cc\u0631 \u06cc\u06a9 \u0639\u062f\u062f \u0639\u062f\u062f \u0627\u0633\u062a!”<\/strong>.<\/p>\n
\u06af\u06cc\u062c \u06a9\u0646\u0646\u062f\u0647 \u0627\u0633\u062a \u0646\u0647\u061f<\/p>\n
\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0648\u0631\u062f NaN \u0635\u062d\u0628\u062a \u06a9\u0646\u06cc\u0645\u061f<\/p>\n
\u0627\u06cc\u0646 \u06a9\u0627\u0645\u0644\u0627\u064b \u062f\u0642\u06cc\u0642 \u0646\u06cc\u0633\u062a \u06a9\u0647 NaN \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 “\u0639\u062f\u062f” \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u0645.  \u062f\u0631 \u0639\u0648\u0636\u060c \u062f\u0642\u06cc\u0642 \u062a\u0631 \u0627\u0633\u062a \u06a9\u0647 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 “\u0639\u062f\u062f \u0646\u0627\u0645\u0639\u062a\u0628\u0631”\u060c “\u0639\u062f\u062f \u0634\u06a9\u0633\u062a \u062e\u0648\u0631\u062f\u0647” \u06cc\u0627 \u062d\u062a\u06cc “\u0639\u062f\u062f \u0628\u062f” \u062a\u0635\u0648\u0631 \u06a9\u0646\u06cc\u0645.<\/p>\n
NaN \u0646\u0648\u0639\u06cc “\u0645\u0642\u062f\u0627\u0631 \u0646\u06af\u0647\u0628\u0627\u0646” \u0627\u0633\u062a \u06a9\u0647 \u0646\u0648\u0639 \u062e\u0627\u0635\u06cc \u0627\u0632 \u0634\u0631\u0627\u06cc\u0637 \u062e\u0637\u0627 \u0631\u0627 \u062f\u0631 \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u0639\u062f\u0627\u062f \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f.  \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062f\u0631 \u0645\u0648\u0631\u062f \u0622\u0646 \u0641\u06a9\u0631 \u06a9\u0646\u06cc\u0645: “\u0633\u0644\u0627\u0645\u060c \u0645\u0646 \u0633\u0639\u06cc \u06a9\u0631\u062f\u0645 \u06cc\u06a9 \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u0645 \u0627\u0645\u0627 \u0646\u0627\u0645\u0648\u0641\u0642 \u0628\u0648\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062f\u0631 \u0639\u0648\u0636 \u0646\u062a\u06cc\u062c\u0647 \u0639\u062f\u062f \u0646\u0627\u0645\u0648\u0641\u0642 \u0627\u0633\u062a<\/strong>“.<\/p>\n
\u062d\u0627\u0644 \u0627\u06af\u0631 \u0645\u0642\u062f\u0627\u0631\u06cc \u062f\u0631 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645 \u0648 \u0628\u062e\u0648\u0627\u0647\u06cc\u0645 \u0622\u0632\u0645\u0627\u06cc\u0634 \u06a9\u0646\u06cc\u0645 \u0648 \u0628\u0628\u06cc\u0646\u06cc\u0645 \u06a9\u0647 \u0622\u06cc\u0627 \u0627\u06cc\u0646 \u0639\u062f\u062f \u0646\u0627\u0645\u0648\u0641\u0642 \u062e\u0627\u0635 NaN \u0627\u0633\u062a\u060c \u0686\u06af\u0648\u0646\u0647 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u062f\u061f<\/p>\n
\u0627\u0648\u0644\u06cc\u0646 \u0686\u06cc\u0632\u06cc \u06a9\u0647 \u0628\u0647 \u0630\u0647\u0646 \u0645\u0627 \u0645\u06cc \u0631\u0633\u062f \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 \u0648 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0645\u062a\u063a\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u062e\u0648\u062f NaN \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0646\u06cc\u062f<\/strong>. <\/p>\n
\u0633\u0627\u062f\u0647 \u0646\u06cc\u0633\u062a\u061f  \u0628\u0628\u06cc\u0646\u0645….<\/p>\n
\n
var a =  13 \/ \"bar\";\n\nconsole.log(a == NaN) \/\/ false\nconsole.log(a === NaN) \/\/ false\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0633\u0631\u062f\u0631\u06af\u0645\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0646\u06cc\u0633\u062a\u061f  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u06a9\u0645\u06cc \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0648\u0631\u062f NaN \u0628\u062f\u0627\u0646\u06cc\u0645.<\/p>\n
NaN \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0628\u0633\u06cc\u0627\u0631 \u0648\u06cc\u0698\u0647 \u0627\u0633\u062a \u0632\u06cc\u0631\u0627 \u0647\u0631\u06af\u0632 \u0628\u0627 \u0645\u0642\u062f\u0627\u0631 NaN \u062f\u06cc\u06af\u0631\u06cc \u0628\u0631\u0627\u0628\u0631 \u0646\u06cc\u0633\u062a. (\u06cc\u0639\u0646\u06cc \u0647\u0631\u06af\u0632 \u0628\u0627 \u062e\u0648\u062f\u0634 \u0628\u0631\u0627\u0628\u0631 \u0646\u06cc\u0633\u062a).<\/p>\n
\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062d\u062a\u06cc \u0627\u06af\u0631 \u0632\u06cc\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645:<\/p>\n
\n
console.log(a == a) \/\/ false\nconsole.log(a === a) \/\/ false\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0646\u062a\u0627\u06cc\u062c \u062f\u0631 \u0647\u0631 \u062f\u0648 \u0645\u0648\u0631\u062f \u0646\u0627\u062f\u0631\u0633\u062a \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. NaN \u062a\u0646\u0647\u0627 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u06a9\u0644 \u0632\u0628\u0627\u0646 \u0627\u0633\u062a \u06a9\u0647 NaN \u0628\u0627 \u062e\u0648\u062f\u0634 \u0628\u0631\u0627\u0628\u0631 \u0646\u06cc\u0633\u062a<\/strong>.<\/p>\n
\u062d\u0627\u0644 \u0627\u06cc\u0646 \u0633\u0648\u0627\u0644 \u067e\u06cc\u0634 \u0645\u06cc \u0622\u06cc\u062f \u06a9\u0647 \u0627\u06af\u0631 \u0646\u062a\u0648\u0627\u0646\u06cc\u0645 NaN \u0631\u0627 \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0646\u06cc\u0645 \u0686\u06af\u0648\u0646\u0647 \u0622\u0646 \u0631\u0627 \u0622\u0632\u0645\u0627\u06cc\u0634 \u06a9\u0646\u06cc\u0645\u061f<\/p>\n
\u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u0645\u0627 \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u0647\u0627\u0646\u06cc \u062f\u0627\u062e\u0644\u06cc \u0628\u0647 \u0646\u0627\u0645 isNan(…) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n
\n
var a =  13 \/ \"bar\";\n\nconsole.log(isNaN(a)) \/\/ true\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0628\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u06a9\u0627\u0641\u06cc \u0633\u0627\u062f\u0647 \u062f\u0631\u0633\u062a \u0627\u0633\u062a\u061f<\/p>\n
\u062f\u0631 \u0648\u0627\u0642\u0639 \u0627\u06cc\u0646 isNan(…) \u06cc\u06a9 \u0646\u0642\u0635 \u06a9\u0634\u0646\u062f\u0647 \u062f\u0627\u0631\u062f.  \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f \u06a9\u0647 \u0645\u0639\u0646\u0627\u06cc NaN \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0639\u062f\u062f \u0631\u0627 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u062a\u062d\u062a \u0627\u0644\u0644\u0641\u0638\u06cc \u0645\u06cc \u06af\u06cc\u0631\u062f.<\/p>\n
\u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0628\u06cc\u0646\u06cc\u062f:<\/p>\n
\n
var a =  13 \/ \"bar\";\nvar b = \"foo\";\n\nconsole.log(isNaN(a)) \/\/ true\nconsole.log(isNaN(b)) \/\/ true\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0627\u0632 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627\u060c \u0641\u0642\u0637 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 “\u0622\u06cc\u0627 \u0686\u06cc\u0632 \u0627\u0631\u0633\u0627\u0644 \u0634\u062f\u0647 \u06cc\u06a9 \u0639\u062f\u062f \u0627\u0633\u062a \u06cc\u0627 \u0646\u0647”. <\/p>\n
\u0648\u0627\u0636\u062d \u0627\u0633\u062a \u06a9\u0647 “foo” \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u06a9\u0644\u0645\u0647 \u06cc\u06a9 \u0639\u062f\u062f \u0646\u06cc\u0633\u062a\u060c \u0627\u0645\u0627 \u0642\u0637\u0639\u0627\u064b \u0645\u0642\u062f\u0627\u0631 NaN \u0646\u06cc\u0632 \u0646\u06cc\u0633\u062a.  \u0627\u06cc\u0646 \u0628\u0627\u06af \u062f\u0631 JS \u0627\u0632 \u0647\u0645\u0627\u0646 \u0627\u0628\u062a\u062f\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.<\/p>\n
\u0627\u0632 ES6\u060c \u0628\u0627\u0644\u0627\u062e\u0631\u0647 \u06cc\u06a9 \u0627\u0628\u0632\u0627\u0631 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f: Number.isNaN(…) \u06a9\u0647 \u0645\u0634\u06a9\u0644 \u0641\u0648\u0642 \u0631\u0627 \u062d\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n
Polyfill \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 NaN \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627\u06cc \u0642\u0628\u0644 \u0627\u0632 ES6 \u0628\u0647 \u0634\u0631\u062d \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n
\n
if (!Number.isNaN) {\n    Number.isNaN = function(n) {\n        return(\n            typeof n === 'number' && isNaN(n)\n        );\n    }\n}\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u06cc\u0646 Polyfill \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u0648\u0627\u0642\u0639\u06cc\u062a \u06a9\u0647 NaN \u0628\u0627 \u062e\u0648\u062f\u0634 \u0628\u0631\u0627\u0628\u0631 \u0646\u06cc\u0633\u062a\u060c \u0628\u0647 \u0631\u0648\u0634\u06cc \u0622\u0633\u0627\u0646 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n
\n
if (!Number.isNaN) {\n    Number.isNaN = function(n) {\n        return n !== n;\n    }\n}\n<\/code><\/pre>\n
\n
\n    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n
    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    \n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n
\u0627\u06af\u0631 \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u0641\u0642\u0637 \u0627\u0632 isNaN(…) \u062f\u0631 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u060c \u0648\u0627\u0642\u0639\u06cc\u062a \u063a\u0645 \u0627\u0646\u06af\u06cc\u0632 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u062f\u0627\u0631\u0627\u06cc \u06cc\u06a9 \u0627\u0634\u06a9\u0627\u0644 \u0627\u0633\u062a\u060c \u062d\u062a\u06cc \u0627\u06af\u0631 \u0647\u0646\u0648\u0632 \u062a\u0648\u0633\u0637 \u0622\u0646 \u06af\u0627\u0632 \u0646\u062e\u0648\u0631\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0627\u06a9\u0646\u0648\u0646 \u0627\u06cc\u062f\u0647 \u0628\u0633\u06cc\u0627\u0631 \u062e\u0648\u0628\u06cc \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0633\u062a \u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f \u0627\u0633\u062a\u060c \u0645\u0627\u0646\u0646\u062f Number.isNaN(…) \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n
\u0627\u06cc\u0646 \u0647\u0645\u0647 \u0628\u0631\u0627\u06cc \u0645\u0648\u0636\u0648\u0639 \u0627\u0633\u062a.  \u0627\u0645\u06cc\u062f\u0648\u0627\u0631\u0645 \u062f\u0648\u0633\u062a \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f.<\/p>\n
\u0645\u0631\u062c\u0639: \u0634\u0645\u0627 JS \u0631\u0627 \u0646\u0645\u06cc \u0634\u0646\u0627\u0633\u06cc\u062f \u0627\u062b\u0631 \u06a9\u0627\u06cc\u0644 \u0633\u06cc\u0645\u067e\u0633\u0648\u0646<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"
\u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0645\u0627 \u0628\u0627\u06cc\u062f \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645: var a = 13 \/ “bar”; console.log(a); \/\/ NaN \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f \u0647\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u0628\u062f\u0648\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0647\u0631 \u062f\u0648 \u0639\u0645\u0644\u0648\u0646\u062f \u0627\u0639\u062f\u0627\u062f \u0628\u0627\u0634\u0646\u062f \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645\u060c \u0645\u0646\u062c\u0631 \u0628\u0647 \u0639\u062f\u0645 \u062a\u0648\u0644\u06cc\u062f \u06cc\u06a9 \u0639\u062f\u062f \u0645\u0639\u062a\u0628\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0622\u0646 \u0631\u0627 …<\/p>\n","protected":false},"author":2,"featured_media":24671,"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-24670","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\/24670","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=24670"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/24670\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/24671"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=24670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=24670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=24670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}