Redo JS Virtuoso Tenth bullet: closure

Source: Internet
Author: User

The closure is JS the most difficult to understand, but also the most egg pain of a noun, as if imaginative achievement here inexpressible, some people say that the closure is the function of nesting, but also some people say that the function can access the functions of the function outside the variable, and the internal external access;

Seems to be very reasonable, in fact, just to think about the closure of some of the performance characteristics, as well as the role of closure and truth.

Well, it's really hard to understand and later to understand and then write 55555555555

Redo JS Virtuoso Tenth bullet: closure

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