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Nature of the call method on Function.prototype

原文 2015-03-02 20:33:38 4 1 javascript

函数对象上的[[Call]]函数与用于控制函数调用的接收者的调用函数是否完全相同？

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No, [[Call]] is an internal method (for specification purposes only). It's defined for user-created functions or bound functions , but can also be implemented on host objects.

The Function.prototype.call method , an actual language-accessible object, is different from it, though it invokes [[Call]].

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Nature of the call method on Function.prototype

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solution1 1 ACCPTED 2015-03-02 20:36:33

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1 ACCPTED 2015-03-02 20:36:33