The use of anonymous functions--javascript

1 (function  () {2     //  ... All variables and functions are declared here, and scopes can only be in this anonymous closure 3     //  ... But the code here still has access to the external global object 4 } ());

Note that the parentheses behind the anonymous function, which is required by the JavaScript language, because if you do not declare, the JavaScript interpreter defaults to declaring a function function, with parentheses, to create a functional expression, which is self-executing, You don't have to use it in new, of course, you can write it.

1 (function () {/**/});

Recommend the first kind

From Uncle Tom's blog http://www.cnblogs.com/TomXu/archive/2011/12/30/2288372.html

The use of anonymous functions--javascript