{"id":67605,"date":"2024-06-27T06:29:57","date_gmt":"2024-06-27T02:59:57","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/software-design-using-oop-fp-part-1-2fgh\/"},"modified":"2024-06-27T06:29:57","modified_gmt":"2024-06-27T02:59:57","slug":"software-design-using-oop-fp-part-1-2fgh","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/software-design-using-oop-fp-part-1-2fgh\/","title":{"rendered":"\u0637\u0631\u0627\u062d\u06cc \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 OOP + FP – \u0642\u0633\u0645\u062a 1"},"content":{"rendered":"

Summarize this content to 400 words in Persian Lang <\/p>\n

\u0637\u0631\u0627\u062d\u06cc \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 OOP + FP – \u0642\u0633\u0645\u062a 1<\/p>\n

\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0631\u0627\u0647 \u062d\u0644 \u0647\u0627\u06cc \u062f\u06cc\u0648\u0627\u0646\u0647 \u06a9\u0646\u0646\u062f\u0647 \u0627\u06cc \u0631\u0627 \u0628\u0627 \u062a\u0631\u06a9\u06cc\u0628 OOP \u0648 FP \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645 \ud83d\ude42<\/p>\n

\u0627\u06cc\u062f\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0686\u0646\u062f\u06cc\u0646 \u0627\u0644\u06af\u0648 \u0631\u0627 \u062e\u0644\u0627\u0635\u0647 \u06a9\u0646\u062f \u0648 \u0645\u062b\u0627\u0644 \u0647\u0627\u06cc\u06cc \u0627\u0632 \u0646\u062d\u0648\u0647 \u062d\u0644 \u0645\u0648\u0627\u0631\u062f \u062e\u0627\u0635 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0634\u06cc \u06af\u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u062f\u0647\u062f.OOP) \u0648 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u062a\u0627\u0628\u0639\u06cc (FP) \u0628\u0631\u0627\u06cc \u0628\u0647 \u062f\u0633\u062a \u0622\u0648\u0631\u062f\u0646 \u0631\u0627\u0647 \u062d\u0644 \u0647\u0627\u06cc \u0628\u0647\u062a\u0631.<\/p>\n

\u062f\u0631 \u0637\u0648\u0644 \u0632\u0646\u062f\u06af\u06cc \u062d\u0631\u0641\u0647 \u0627\u06cc \u062e\u0648\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u06cc\u0646 \u067e\u0627\u0631\u0627\u062f\u0627\u06cc\u0645 \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0645\u062e\u062a\u0644\u0641 \u062d\u0631\u06a9\u062a \u06a9\u0646\u06cc\u0645. \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0646\u0642\u0627\u0637 \u0642\u0648\u062a \u0648 \u0636\u0639\u0641 \u062e\u0648\u062f \u0631\u0627 \u062f\u0627\u0631\u0646\u062f \u0648 \u0628\u06cc\u0634 \u0627\u0632 \u062f\u0648 \u0645\u0648\u0631\u062f \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f. \u0645\u0627 OOP \u0648 FP \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f \u0632\u06cc\u0631\u0627 \u0622\u0646\u0647\u0627 \u0628\u06cc\u0634\u062a\u0631\u06cc\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0631\u0627 \u062f\u0627\u0631\u0646\u062f. \u0646\u06a9\u062a\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0647\u0645\u06cc\u0634\u0647 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u062f\u0627\u0646\u06cc\u062f \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0648 \u0686\u06af\u0648\u0646\u0647 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0628\u0647 \u062f\u0633\u062a \u0622\u0648\u0631\u062f\u0646 \u0631\u0627\u0647 \u062d\u0644 \u0647\u0627\u06cc \u0628\u0647\u062a\u0631 \u0627\u0639\u0645\u0627\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n

\u0628\u06cc\u0627\u06cc\u06cc\u062f \u06cc\u06a9 \u0628\u0631\u0631\u0633\u06cc \u0633\u0631\u06cc\u0639 \u0627\u0632 \u0627\u06cc\u062f\u0647 \u0647\u0627\/\u0645\u0641\u0627\u0647\u06cc\u0645 \u0627\u0635\u0644\u06cc \u0647\u0631 \u067e\u0627\u0631\u0627\u062f\u0627\u06cc\u0645 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645<\/p>\n

\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0634\u06cc \u06af\u0631\u0627<\/p>\n

\u06a9\u067e\u0633\u0648\u0644\u0647 \u0633\u0627\u0632\u06cc: \u067e\u0646\u0647\u0627\u0646 \u06a9\u0631\u062f\u0646 \u062c\u0632\u0626\u06cc\u0627\u062a \u062f\u0627\u062e\u0644\u06cc \u0648 \u0627\u0641\u0634\u0627\u06cc \u062a\u0646\u0647\u0627 \u0645\u0648\u0627\u0631\u062f \u0636\u0631\u0648\u0631\u06cc.
\n\u0648\u0631\u0627\u062b\u062a: \u0627\u06cc\u062c\u0627\u062f \u06a9\u0644\u0627\u0633 \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0628\u0631 \u0627\u0633\u0627\u0633 \u06a9\u0644\u0627\u0633 \u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f.
\n\u067e\u0644\u06cc \u0645\u0648\u0631\u0641\u06cc\u0633\u0645: \u06a9\u0644\u0627\u0633 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u06cc\u06a9 \u0631\u0627\u0628\u0637 \u0645\u0634\u062a\u0631\u06a9 \u062f\u0631\u0645\u0627\u0646 \u06a9\u0631\u062f.
\n\u0627\u0646\u062a\u0632\u0627\u0639 – \u0645\u0641\u0647\u0648\u0645 – \u0628\u0631\u062f\u0627\u0634\u062a: \u0633\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0628\u0627 \u067e\u0646\u0647\u0627\u0646 \u06a9\u0631\u062f\u0646 \u062c\u0632\u0626\u06cc\u0627\u062a \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc.
\n\u0635\u062d\u0627\u0641\u06cc \u067e\u0648\u06cc\u0627: \u062a\u0639\u06cc\u06cc\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u06a9\u062f\u0627\u0645 \u0645\u062a\u062f \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0628\u0647 \u062c\u0627\u06cc \u0632\u0645\u0627\u0646 \u06a9\u0627\u0645\u067e\u0627\u06cc\u0644 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0634\u0648\u062f.
\n\u0627\u0631\u0633\u0627\u0644 \u067e\u06cc\u0627\u0645: \u0627\u0634\u06cc\u0627 \u0628\u0627 \u0627\u0631\u0633\u0627\u0644 \u0648 \u062f\u0631\u06cc\u0627\u0641\u062a \u067e\u06cc\u0627\u0645 \u0628\u0627 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0631\u0642\u0631\u0627\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n

\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc<\/p>\n

\u062a\u063a\u06cc\u06cc\u0631\u0646\u0627\u067e\u0630\u06cc\u0631\u06cc: \u062f\u0627\u062f\u0647 \u0647\u0627 \u067e\u0633 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0645\u06cc \u06a9\u0646\u0646\u062f.
\n\u062a\u0648\u0627\u0628\u0639 \u062e\u0627\u0644\u0635: \u0647\u0645\u06cc\u0634\u0647 \u06cc\u06a9 \u0646\u062a\u06cc\u062c\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0647\u0627\u06cc \u06cc\u06a9\u0633\u0627\u0646 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u06cc\u062f.
\n\u062a\u0631\u06a9\u06cc\u0628 \u062a\u0627\u0628\u0639: \u062a\u0631\u06a9\u06cc\u0628 \u062a\u0648\u0627\u0628\u0639 \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631.
\n\u0628\u0627\u0632\u06af\u0634\u062a: \u062d\u0644 \u0645\u0633\u0627\u0626\u0644 \u0628\u0627 \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0631\u062f\u0646 \u0622\u0646\u0647\u0627 \u0628\u0647 \u0645\u0648\u0627\u0631\u062f \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0647\u0645\u0627\u0646 \u0645\u0634\u06a9\u0644.
\n\u0646\u0638\u0645 \u0628\u0627\u0644\u0627: \u062a\u0648\u0627\u0628\u0639\u06cc \u06a9\u0647 \u062a\u0648\u0627\u0628\u0639 \u062f\u06cc\u06af\u0631 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0645\u06cc \u06af\u06cc\u0631\u0646\u062f \u06cc\u0627 \u062a\u0648\u0627\u0628\u0639 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0646\u062f.
\n\u0634\u0641\u0627\u0641\u06cc\u062a \u0627\u0631\u062c\u0627\u0639\u06cc: \u06cc\u06a9 \u0639\u0628\u0627\u0631\u062a \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u062f\u0648\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0631 \u0631\u0641\u062a\u0627\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0628\u0627 \u0645\u0642\u062f\u0627\u0631 \u0622\u0646 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u06a9\u0631\u062f.<\/p>\n

\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u067e\u0627\u0631\u0627\u062f\u0627\u06cc\u0645 \u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0631\u0627 \u0645\u0631\u0648\u0631 \u06a9\u0631\u062f\u06cc\u0645\u060c \u0622\u0645\u0627\u062f\u0647 \u0628\u0631\u0631\u0633\u06cc \u0628\u0631\u062e\u06cc \u0627\u0632 \u0627\u0644\u06af\u0648\u0647\u0627\u06cc \u0628\u0648\u06cc \u0631\u0627\u06cc\u062c \u0647\u0633\u062a\u06cc\u0645\u060c \u0627\u0645\u0627 \u0642\u0628\u0644 \u0627\u0632 \u0622\u0646\u060c \u0645\u06cc \u062e\u0648\u0627\u0647\u0645 \u0645\u0642\u062f\u0645\u0627\u062a \u0628\u0631\u062a\u0631 \u062e\u0648\u062f \u0631\u0627 \u0647\u0646\u06af\u0627\u0645 \u06a9\u062f\u0646\u0648\u06cc\u0633\u06cc \u0627\u0631\u0627\u0626\u0647 \u06a9\u0646\u0645.<\/p>\n

\u0645\u0642\u062f\u0627\u0631 \u0646\u062d\u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u0631\u0627 (\u062a\u0627 \u062d\u062f \u0627\u0645\u06a9\u0627\u0646) \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0628\u0631\u0633\u0627\u0646\u06cc\u062f.
\n\u0627\u0632 \u062a\u0639\u0631\u06cc\u0641 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f.
\n\u062a\u0648\u0627\u0628\u0639\/\u0631\u0648\u0634 \u0647\u0627 \u0631\u0627 \u06a9\u0648\u0686\u06a9 \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f \u0648 \u0631\u0648\u06cc \u062a\u06a9 \u0645\u0646\u0638\u0648\u0631\u0647 \u0645\u062a\u0645\u0631\u06a9\u0632 \u06a9\u0646\u06cc\u062f (\u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u0645\u06a9\u0627\u0646 \u062f\u0631\u0648\u0646 \u062e\u0637\u06cc).
\n\u0637\u0631\u0627\u062d\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0627\u067e\u0630\u06cc\u0631\u06cc \u0648 \u062a\u063a\u06cc\u06cc\u0631\u067e\u0630\u06cc\u0631\u06cc \u062a\u0631\u06a9 \u0641\u0642\u0637 \u0628\u0631\u0627\u06cc \u0645\u0648\u0627\u0631\u062f \u062e\u0627\u0635 (\u06a9\u067e\u0633\u0648\u0644\u0647 \u0634\u062f\u0647).
\n\u0627\u0632 \u0646\u0627\u0645 \u0647\u0627\u06cc \u062a\u0648\u0635\u06cc\u0641\u06cc \u0628\u0631\u0627\u06cc \u062a\u0648\u0627\u0628\u0639\u060c \u0645\u062a\u062f\u0647\u0627\u060c \u06a9\u0644\u0627\u0633 \u0647\u0627 \u0648 \u062b\u0627\u0628\u062a \u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.
\n\u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u0644\u0645\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc \u062a\u06a9\u0631\u0627\u0631 \u062f\u0627\u062e\u0644\u06cc \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f (\u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627 \u0631\u0627\u0647 \u062d\u0644 \u0631\u0627 \u0628\u062f\u062a\u0631 \u06a9\u0646\u062f).
\n\u0647\u0632\u06cc\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0631\u0627 \u0647\u0645\u06cc\u0634\u0647 \u062f\u0631 \u0646\u0638\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f.
\n\u06a9\u062f \u0628\u0627\u06cc\u062f \u062e\u0648\u062f\u0634 \u062a\u0648\u0636\u06cc\u062d \u062f\u0647\u062f.<\/p>\n

\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f: \u0645\u0646 \u0627\u0632 *NodeJs *\u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u0647\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0645\u06a9\u0627\u0646\u0627\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u0645 \u06a9\u0631\u062f\u060c \u0627\u06af\u0631\u0686\u0647 \u0627\u06cc\u0646 \u0627\u06cc\u062f\u0647 \u0647\u0627 \u0628\u0627\u06cc\u062f \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0647\u0631 \u0632\u0628\u0627\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u062f\u06cc\u06af\u0631\u06cc \u06a9\u0647 \u0628\u0647 \u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u067e\u0627\u0631\u0627\u062f\u0627\u06cc\u0645 \u0647\u0627\u06cc OOP \u0648 FP \u0631\u0627 \u0645\u06cc \u062f\u0647\u062f\u060c \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0634\u0648\u0646\u062f.<\/p>\n

Complex if then else \u0648 \u0633\u0648\u0626\u06cc\u0686 \u0645\u0648\u0627\u0631\u062f<\/p>\n

\u0686\u0646\u062f\u06cc\u0646 \u0628\u0627\u0631 \u06a9\u062f\u06cc \u0628\u0627 \u0634\u0631\u0627\u06cc\u0637 \u062a\u0648 \u062f\u0631 \u062a\u0648 \u06cc\u0627 \u0645\u0648\u0627\u0631\u062f \u0633\u0648\u0626\u06cc\u0686 \u0645\u06cc \u0628\u06cc\u0646\u0645 \u06a9\u0647 \u062f\u0631\u06a9 \u0648 \u062d\u0641\u0638 \u0645\u0646\u0637\u0642 \u0631\u0627 \u0633\u062e\u062a \u0645\u06cc \u06a9\u0646\u062f<\/p>\n

const reactByAction = action => {
\n switch (action.type) {
\n case ‘A’:
\n return calculateA(action)
\n case ‘B’:
\n return calculateB(action)
\n case ‘C’:
\n return calculateC(action)
\n default:
\n return \/\/ Do nothing
\n }
\n}<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u06cc\u0646 \u062f\u0648 \u0631\u0648\u06cc\u06a9\u0631\u062f \u06cc\u06a9\u06cc \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u0645. \u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u062a\u0635\u0645\u06cc\u0645 \u0628\u06af\u06cc\u0631\u06cc\u0645 \u0627\u0632 *Polymorphism *\u06a9\u0644\u0627\u0633\u06cc\u06a9 \u062f\u0631 OOP \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 \u0648 \u0645\u0633\u0626\u0648\u0644\u06cc\u062a \u0622\u0646 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0631\u0627 \u0628\u0647 \u0647\u0631 \u0646\u0645\u0627\u06cc\u0634 \u0639\u0645\u0644\u06cc \u0645\u062d\u0648\u0644 \u06a9\u0646\u06cc\u0645.<\/p>\n

const reactByAction = action => action.calculate()<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0647\u0631 \u0639\u0645\u0644 \u0645\u06cc \u062f\u0627\u0646\u062f \u0686\u06af\u0648\u0646\u0647 \u0628\u0627\u06cc\u062f \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u0648\u062f<\/p>\n

` \u0627\u06a9\u0634\u0646 \u06a9\u0644\u0627\u0633 \u0627\u0646\u062a\u0632\u0627\u0639\u06cc {\u0645\u062d\u0627\u0633\u0628\u0647 \u0627\u0646\u062a\u0632\u0627\u0639\u06cc()}<\/p>\n

class ActionA extends Action {
\n calculate() {
\n …
\n }
\n}<\/p>\n

class ActionB extends Action {
\n calculate() {
\n …
\n }
\n}<\/p>\n

…`<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0645\u0627\u060c \u062f\u0631 \u0648\u0627\u0642\u0639\u060c \u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a \u062a\u0635\u0648\u0631 \u0645\u06cc\u200c\u0634\u062f \u06a9\u0647 \u0631\u0627\u0647\u200c\u062d\u0644\u200c\u0647\u0627\u06cc \u0645\u0627 \u0645\u0627\u0646\u0646\u062f \u0627\u0634\u06cc\u0627\u0621 \u0646\u0645\u0648\u0646\u0647 \u0631\u0641\u062a\u0627\u0631 \u0646\u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0646\u06af\u0627\u0634\u062a \u0634\u06cc\u0621 \u06a9\u0644\u0627\u0633\u06cc\u06a9 \u0648 \u0634\u0641\u0627\u0641\u06cc\u062a \u0627\u0631\u062c\u0627\u0639\u06cc\u060c \u06a9\u0647 \u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 \u0633\u0648\u0626\u06cc\u0686 \u063a\u06cc\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u0628\u0647 \u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0645\u0648\u0627\u0631\u062f \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u0645<\/p>\n

const calculateAction = {A: action => …,B: action => …,C: action => …,}<\/p>\n

const reactByAction = action => calculateAction?.[action.type](action)<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0644\u0628\u062a\u0647\u060c \u0627\u06cc\u0646 \u06cc\u06a9 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u062f\u0627\u0631\u062f\u060c \u0647\u0631 \u0628\u0627\u0631 \u06a9\u0647 \u0634\u0645\u0627 \u0646\u06cc\u0627\u0632 \u0628\u0647 “\u0634\u0646\u0627\u0633\u0627\u06cc\u06cc” \u06cc\u06a9 \u0646\u0648\u0639 \u0639\u0645\u0644 \u062f\u0627\u0631\u06cc\u062f\u060c \u0628\u0627\u06cc\u062f \u06cc\u06a9 \u0646\u06af\u0627\u0634\u062a \u0634\u06cc \u062b\u0627\u0628\u062a \u062c\u062f\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f.<\/p>\n

\u0647\u0631 \u0631\u0627\u0647 \u062d\u0644\u06cc \u06a9\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0647\u0645\u06cc\u0634\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0633\u0627\u062f\u0647 \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f\u060c \u0645\u0633\u0626\u0648\u0644\u06cc\u062a\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0628\u0647\u062a\u0631\u06cc\u0646 \u0634\u06a9\u0644 \u0645\u0645\u06a9\u0646 \u0645\u062d\u0648\u0644 \u06a9\u0646\u06cc\u062f\u060c \u062a\u0639\u062f\u0627\u062f \u062e\u0637\u0648\u0637 \u0631\u0627\u0647\u200c\u062d\u0644 \u062e\u0648\u062f \u0631\u0627 \u062a\u0648\u0632\u06cc\u0639 \u06a9\u0646\u06cc\u062f \u0648 \u0627\u0632 \u06cc\u06a9 \u0646\u0627\u0645 \u062a\u0648\u0636\u06cc\u062d\u06cc \u062e\u0648\u0628 \u0628\u0631\u0627\u06cc \u0633\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u062f\u0631\u06a9\/\u0645\u0642\u06cc\u0627\u0633\u200c\u067e\u0630\u06cc\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n

\u0627\u06af\u0631 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u06cc\u06a9 \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 \u0647\u0631 \u0639\u0645\u0644 \u0627\u0631\u0627\u0626\u0647 \u062f\u0647\u06cc\u062f\u060c \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0645\u06cc \u06a9\u0646\u0645 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0630\u0648\u0628 \u0634\u062f\u0647 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f<\/p>\n

` \u06a9\u0644\u0627\u0633 Handler {\u0633\u0627\u0632\u0646\u062f\u0647() {this.actionMap = {A: action => new ActionA(action)\u060cB: action => new ActionB(action)C: action => new ActionC(action)};}<\/p>\n

reactByAction = action => this.actionMap[action.type]?.(action).calculate()
\n}`<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u062a\u0639\u0627\u0631\u06cc\u0641 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc<\/p>\n

\u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a\u060c \u0645\u0627 \u062a\u0648\u0627\u0628\u0639\/\u0631\u0648\u0634 \u0647\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0627 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0627\u0632 \u06cc\u06a9 \u0632\u0645\u06cc\u0646\u0647 \u0645\u0634\u062a\u0631\u06a9 \u0645\u0634\u062a\u0642 \u0634\u0648\u0646\u062f\u060c \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u06a9\u0646\u06cc\u0645\u060c \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0633\u0627\u062f\u0647 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.`const totalPrice = (\u0642\u06cc\u0645\u062a\u060c \u0646\u0631\u062e \u0645\u0627\u0644\u06cc\u0627\u062a\u060c \u0646\u0631\u062e \u062a\u062e\u0641\u06cc\u0641) => {const taxAmount = \u0642\u06cc\u0645\u062a * \u0646\u0631\u062e \u0645\u0627\u0644\u06cc\u0627\u062aconst discountAmount = \u0642\u06cc\u0645\u062a * \u0646\u0631\u062e \u062a\u062e\u0641\u06cc\u0641\u0642\u06cc\u0645\u062a \u0628\u0627\u0632\u06af\u0634\u062a + \u0645\u0627\u0644\u06cc\u0627\u062a \u0645\u0628\u0644\u063a – \u062a\u062e\u0641\u06cc\u0641 \u0645\u0628\u0644\u063a}<\/p>\n

const totalForRegularCustomer = price => totalPrice(price, 0.1, 0)
\nconst totalForPremiumCustomer = price => totalPrice(price, 0.1, 0.1)`<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u062a\u0639\u0627\u0631\u06cc\u0641 \u062f\u0631\u0633\u062a \u0647\u0633\u062a\u0646\u062f\u060c \u0627\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u0645\u0633\u0626\u0648\u0644\u06cc\u062a\u200c\u0647\u0627 \u0631\u0627 \u0628\u0627 \u062c\u062f\u0627 \u06a9\u0631\u062f\u0646 \u062a\u0627\u0628\u0639\u060c \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0641\u0647\u0648\u0645 Currying \u0648 \u06a9\u0644\u0627\u0633\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u0645\u062d\u0635\u0648\u0631 \u06a9\u0631\u062f\u0646 \u062c\u0632\u0626\u06cc\u0627\u062a \u0648 \u0627\u06cc\u062c\u0627\u062f \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u062a\u062e\u0635\u0635\u06cc\u200c\u062a\u0631 \u0633\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n

\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0633\u0627\u062f\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 OOP \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f<\/p>\n

` \u0645\u0634\u062a\u0631\u06cc \u06a9\u0644\u0627\u0633 {taxAmount = \u0642\u06cc\u0645\u062a => \u0642\u06cc\u0645\u062a * this.taxRate()discountAmount = \u0642\u06cc\u0645\u062a => \u0642\u06cc\u0645\u062a * this.discountRate()totalPrice = \u0642\u06cc\u0645\u062a => \u0642\u06cc\u0645\u062a + this.taxAmount(price) – this.discountAmount(price)}<\/p>\n

class RegularCustomer extends Customer {
\n taxRate = () => 0.1
\n discountRate = () => 0
\n}<\/p>\n

class PremiumCustomer extends Customer {
\n taxRate = () => 0.05
\n discountRate = () => 0.1
\n}`<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0645\u0646 \u0627\u0632 \u0631\u0648\u0634 \u0627\u0644\u06af\u0648\u06cc \u0627\u0644\u06af\u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645 \ud83d\ude42<\/p>\n

\u0648 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06af\u0632\u06cc\u0646\u0647 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 FP \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f<\/p>\n

` \u0645\u0627\u0644\u06cc\u0627\u062a \u0628\u0631 \u0647\u0632\u06cc\u0646\u0647 = \u0646\u0631\u062e \u0645\u0627\u0644\u06cc\u0627\u062a => \u0642\u06cc\u0645\u062a => \u0642\u06cc\u0645\u062a * \u0646\u0631\u062e \u0645\u0627\u0644\u06cc\u0627\u062aconst discount = discountRate => price => price * discountRate<\/p>\n

const regularTaxAmout = tax(0.1)
\nconst premiumTaxAmout = tax(0.05)
\nconst regularDiscount = discount(0)
\nconst premiumDiscount = discount(0.1)<\/p>\n

const calculationWithRates = (taxRateFunc, discountRateFunc) => price =>
\n price + taxRateFunc(price) – discountRateFunc(price)<\/p>\n

const totalForRegularCustomer = calculationWithRates(regularTaxAmout, regularDiscount)
\nconst totalForPremiumCustomer = calculationWithRates(premiumTaxAmout, premiumDiscount)`<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0645\u0646 \u062a\u0648\u0627\u0628\u0639 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0627\u0646\u062a\u0632\u0627\u0639\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u0648 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0639\u0644\u0627\u0646 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u0645<\/p>\n

\u0628\u0627\u0632 \u0647\u0645\u060c \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0647\u0631 \u062f\u0648 \u067e\u0627\u0631\u0627\u062f\u0627\u06cc\u0645 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0637\u0631\u062d \u062a\u0631\u06a9\u06cc\u0628\u06cc \u062a\u0631\u06a9\u06cc\u0628 \u06a9\u0646\u06cc\u0645 \ud83d\ude42<\/p>\n

` \u0645\u0634\u062a\u0631\u06cc \u06a9\u0644\u0627\u0633 {\u0633\u0627\u0632\u0646\u062f\u0647 (\u0646\u0631\u062e \u0645\u0627\u0644\u06cc\u0627\u062a\u060c \u0646\u0631\u062e \u062a\u062e\u0641\u06cc\u0641) {this.taxRate = taxRatethis.discountRate = discountRate}<\/p>\n

totalPrice = price => price + this.calculateTax(price) – this.calculateDiscount(price)<\/p>\n

calculateTax = price => price * this.taxRate
\n calculateDiscount = price => price * this.discountRate
\n}<\/p>\n

const regularCustomer = new Customer(0.1, 0)
\nconst premiumCustomer = new Customer(0.05, 0.1)<\/p>\n

const total = customer => customer.totalPrice<\/p>\n

const totalForRegularCustomer = total(regularCustomer)
\nconst totalForPremiumCustomer = total(premiumCustomer)`<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

\u0631\u0648\u0634\/\u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u0637\u0648\u0644\u0627\u0646\u06cc \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f<\/p>\n

\u06a9\u0644\u0627\u0633\u06cc\u06a9 \u062f\u06cc\u06af\u0631\u06cc \u06a9\u0647 \u0645\u0646 \u0628\u0647 \u062f\u06cc\u062f\u0646 \u0622\u0646 \u0639\u0627\u062f\u062a \u062f\u0627\u0631\u0645 \u0631\u0648\u0634 \u0647\u0627 \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc\u06cc \u0628\u0627 \u0645\u0633\u0626\u0648\u0644\u06cc\u062a \u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u060c \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0637\u0648\u0644\u0627\u0646\u06cc\u060c \u0628\u0627 \u0642\u0631\u0627\u0631\u062f\u0627\u062f\u0647\u0627\u06cc \u0633\u062e\u062a \u06a9\u062f\u06af\u0630\u0627\u0631\u06cc \u0634\u062f\u0647 \u0648 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062a\u062c\u0627\u0631\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0627\u0633\u062a.<\/p>\n

` const tokenize = \u06a9\u062f => {let tokens = []\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f currentToken = ”\u0628\u06af\u0630\u0627\u0631\u06cc\u062f currentType = null<\/p>\n

for (let i = 0; i < code.length; i++) {
\n let char = code[i]\n

if (char === ‘ ‘ || char === ‘<\/p>\n

\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n

\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n

‘ || \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 === ”) {if (currentToken !== ”) {tokens.push({ type: currentType\u060c \u0645\u0642\u062f\u0627\u0631: currentToken })CurrentToken = ”CurrentType = null}} else if (char === ‘+’ || char === ‘-‘ || char === ‘*’ || char === “https:\/\/dev.to\/”) {if (currentToken !== ”) {tokens.push({ type: currentType\u060c \u0645\u0642\u062f\u0627\u0631: currentToken })currentToken = ”}tokens.push({ type: ‘operator’, value: char });} else if (char >= ‘0’ && char = ‘a’ && char = ‘A’ && char <\/p>\n

\n
\n
\n

\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\nToggle<\/span><\/path><\/svg><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n