Javascript 如何编写一个简单的jQuery插件

我想使用jquery创建简单的插件。 在编写jQuery插件时，也向我推荐标准做法

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请大家给我一些更好的建议。

一个好的开始模式如下：

(function($){
   $.fn.yourplugin = function() {
   };
}(jQuery));

我在几年前创建了一个简单的模板，现在仍然非常有效：

（函数（$）{
如果（！$.myExample）{//检查您的插件名称空间不存在
$.extend（{//这将允许您将插件添加到jQuery库
myExample:function（elm、command、args）{
//请记住，此时您可能需要执行类或数据检查，以确定调用的方向
//例如，在初始化元素上的插件时，可以将插件名称添加为类，
//这样，当调用它时，您可以看到alrady拥有该类并且可能正在调用命令，
//因此，做出一个if声明来推动流程
返回elm.each（函数（索引）{
//在每个元素通过时对其进行处理
//一定要使用类似于
//返回elm.each（函数（e）{dor work}）；
//作为您的最终声明，以保持“链接性”
});
}
});
$.fn.extend（{//这提供了$funcs的可链接性功能，如：$（“#eleID”）.css（“颜色”、“红色”）查看一下（非常简短和简单）或。我写了一个关于如何创建jQuery下拉阴影插件的分步指南，您可能想在这里查看：-通过非常简单的代码，您可以创建一个功能完整的jQuery插件。
(function($){
  // $('p').greenify() turns all text in p elements green.
  $.fn.greenify = function() {
    this.css( "color", "green" ); // set text color
    return this; // for chaining;
  };
})(jQuery);

(function($) {
    if (!$.myExample) { // check your plugin namespace does not already exist
        $.extend({  //  this will allow you to add your plugin to the jQuery lib
            myExample: function(elm, command, args) {
                //  keep in mind, right here you might want to do a class or data check to determine which direction this call is going
                //  for example, upon init the plugin on an element you may add the plugin name as a class, 
                //      this way, when it's recalled, you can see it alrady has that class and might be calling a command,
                //          thus make an if statemnt to push the process through
                return elm.each(function(index){
                    // do work to each element as its passed through
                    // be sure to use something like
                    //    return elm.each(function(e) { dor work });
                    // as your final statement in order to maintain "chainability"
                });
            }
        });
        $.fn.extend({   //  this gives the chainability functionality seen with $ funcs like: $("#eleID").css("color", "red") <--returns original element object
            myExample: function(command) {
                return $.myExample($(this), command, Array.prototype.slice.call(arguments, 1));
            }
        });
        $.myExample.props = {   //  Here you can establish specific properties to your plugin, prehaps even make them "Over-writable"
            key1: "value",
            key2: "value"
        };
        $.myExample.methods = { //  Here you can establish specific methods/functions for your plguin to carry out and maintain your namespace as well
            key1: function(param) {
                /*  do work */
            },
            key2: function(param) {
                /*  do work */
            }
        };
        //  This next part is not seen in many plugins but useful depending on what you're creating
        $.myExample.init = function(param) {    //  If you have an initialize method to apply, namespace it in here and calll on initializing your plugin
            var key = "value",
                key2 = {
                    subKey: "value"
                };
                /*
                /  run any number of initializing functions here
                /  I prefer to make my param a value that can be a
                /   string with a possible object
                /   the string for holding a base configuration
                /   the object for any change in properties or base values for that config
                */
        };
        $.myExample.defaults = {    //  establish base properties here that can be over-written via .props, but their values should never truly change
            key1: "value",
            key2: {
                prop1: {
                    subKey1: "value",
                    subKey2: "value"
                },
                prop2: {
                    subKey1: "value"
                }
            },
            key3: function(param) {

            }
        };
    }
})(jQuery);