Add a callback function to the jQuery Method

[Javascript]/*** @ fileOverview this plug-in is used to add a callback function to the jQuery method, you can add any custom callback function in the class method or instance method without affecting the behavior of the original method * @ dependencyjQuery1.7 + * @ authorhuhai * @ since2013-01... syntax [javascript]/*** @ fileOverview this plug-in is used to add a callback function to the jQuery method, you can add any custom callback function in the class method or instance method without affecting the behavior of the original method * @ dependency jQuery1.7 + * @ author huhai * @ since 2013-01-21 */(function ($) {$. _ callbacks ={}; $. _ callbacks _ = {}; $. _ alias ={}; $. _ alias _ = {}; $. extend ({/*** @ demo- Ion adds a callback function to the Method * @ param funcName: string the name of the callback function to be added * @ param callback: function callback function (if you want to remove the function, do not use the anonymous method) * @ param static: whether the boolean is a class method. The default value is false */addCallback: function (funcName, callback, static) {if ("string" = typeof (funcName) & $. isFunction (callback) {if (static = true) {if ($ [funcName] & $. isFunction ($ [funcName]) {if (! This. _ callbacks [funcName]) {this. _ callbacks [funcName] = $. Callbacks () ;}this. _ callbacks [funcName]. add (callback); if (! $. _ Alias [funcName]) {$. _ alias [funcName] = $ [funcName]; // store the original class method $ [funcName] = function () {// proxy class method; var result = $. _ alias [funcName]. apply (this, arguments); $. _ callbacks [funcName]. fireWith (this, arguments); return result ;}}} else {if ($. fn [funcName] & $. isFunction ($. fn [funcName]) {if (! This. _ callbacks _ [funcName]) {this. _ callbacks _ [funcName] = $. callbacks ();} this. _ callbacks _ [funcName]. add (callback); if (! $. _ Alias _ [funcName]) {$. _ alias _ [funcName] = $. fn [funcName]; // Method for storing the original Instance $. fn [funcName] = function () {// proxy instance method; var result = $. _ alias _ [funcName]. apply (this, arguments); $. _ callbacks _ [funcName]. fireWith (this, arguments); return result ;}}}},/*** @ decription remove the callback function added to the Method * @ param funcName: string added callback function name * @ param callback: function callback function * @ param static: whether the boolean is a class method. The default value is false */removeCallback: function (funcName, callback, static) {if ("string" === typeof (funcName) & $. isFunction (callback) {if (static = true) {if ($ [funcName] & $. isFunction ($ [funcName]) {if (this. _ callbacks [funcName]) {this. _ callbacks. remove (callback) ;}} else {if ($. fn [funcName] & $. isFunction ($. fn [funcName]) {if (this. _ callbacks _ [funcName]) {this. _ callbacks _. remove (callback) ;}}}}}) ;}( jQuery); usage example: HTML [html]