The self-execution of anonymous function of jquery source code Analysis

The format of the anonymous function:

Format: (function () {// Code }) ();

//和这个基于jQuery的比较下：

$ (function () {     alert ("This is a Test");});

Explanation: The first pair of parentheses of the enclosing function (function () {}) returns an unnamed function to the script, followed by a pair of empty parentheses that immediately execute the returned unnamed function, with the parameters of the anonymous function in parentheses.

For example:

(function (ARG) {alert (arg+100);}) (20);

This example returns 120.

The self-execution of anonymous function of jquery source code Analysis