javascript tricks. Why (a,b,c) => 5 -


।

<पूर्व> var a, b, c = function () {return 5; };

चर ए और बी अपरिभाषित है, सी फ़ंक्शन है, हम ऐसा क्यों करते हैं (ए, बी, सी) () हमारे पास 5?

घोषणा समान है: 

  var a; Var बी; Var c = function () {वापसी 5; };

या व्यावहारिक रूप से समान: 

  var a; Var बी; फ़ंक्शन c () {वापसी 5; };

(ए, बी, सी) का उपयोग करने के लिए घोषणा के साथ कुछ भी नहीं है, यह केवल अंतिम ऑपरेंड देता है, इसलिए (a, b, सी) () बिल्कुल c () के रूप में एक ही है (जब तक किसी और के मूल्यांकन के लिए कोई दुष्प्रभाव नहीं होता है)।


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