JS Global function

Source: Internet
Author: User


Before we understood the global function of JS, the global function and the function of the window object were different.
A global function does not belong to any of the built-in objects.

JS contains the following 7 global functions for some common functions: Escape (), eval (), IsNan (), Isfinite (), parsefloat (), parseint (), unescape ();

Escape (String), which encodes a string so that it can be read on all computers.

The method does not encode ASCII letters and numbers, nor does it encode the following ASCII punctuation marks: * @-_ +. / 。 All other characters will be replaced by escape sequences.

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