A simple analysis of the difference between jquery (function () {}) and (function () {}) (jquery) _jquery

jquery is an excellent javascrīpt framework. Let's now discuss the functions that are executed after two pages are loaded in Jquery.

$ (document). Ready (function () {
Write your code here ...
); Code that runs when the DOM load completes

Can be written by Jane

JQuery (function () {
});

(function ($) {}) What do you mean by (jQuery)?
(function () {
}) (JQuery);

It actually executes the () (para) anonymous method, except that it passes the jquery object.

Equivalent
function AA ($) {}
AA (JQuery)

is an idiomatic way to initialize a jquery object.

The popular point is that the page is loaded after the completion of the code you need to execute.
But this thing, sometimes will make the page beat, a lot of jquery plug-ins are loaded after the completion of the change in style, the page will have the feeling of beating or flashing. For example Ui.tab this plugin, page element a lot, all show out, it just form tab, very Dizzy said

(Funtion () {}) (); Execute the function immediately; the equivalent of declaring a function, calling directly after the declaration is finished;

If the parameter is as follows:
(Funtion (str) {alert (str)}) ("Output")) ; equivalent to: funtion outputfun (str) {alert (str);};o Utputfun ("Output");

JQuery (function () {}), the code that holds the operation Dom object, and the DOM object already exists when the code is executed. cannot be used to store the development plug-in code, because the jquery object is not passed, the external through the Jquery.method can not call the method (function).
(function () {}) (jQuery); code that holds the development plug-in, the DOM does not necessarily exist when the code is executed, so be careful with the code that performs the DOM operation directly.