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jQuery模式-这有效还是有更好的方法?

[英]jQuery Pattern - is this valid or is there a better way?

我已经整理了一下是否属于这种javascript组织,并且想知道我是否在此处遗漏了这个要点,或者是否有更优雅的方法来做到这一点。

基本上,我将所有内容包装在一个函数(对象)中,然后在该对象上设置方法,然后实例化包装对象的实例并传入任何选项和依赖项。

我有一种预感,有一种方法可以自动运行.init()以及可以进行的其他一些调整。 我做对了吗?

function AppModuleCore(){

    var AppModuleCore = this; //keep internals sane

    // Various global vars, objects
    AppModuleCore.defaultOptions = {};

    AppModuleCore.init = function(opts) {

        // todo: that thing where you extend an options object a la juery

        AppModuleCore.bindEvents();

    };

    AppModuleCore.bindEvents = function() {

        // bind events here, send to functions within AppModuleCore.<FUNCTIONNAME>();

        // Example:
        $("a#clicker").unbind("click");
        $("a#clicker").click(function(event){

            AppModuleCore.handleClickerClick(event);

        });

    };

    AppModuleCore.handleClickerClick = function(event){

        alert("clicker was clicked");

    };

}

// --------------------------------------------------------------------
// instantiate AppModuleCore object and initialize with opts, 
// dependency injection
// --------------------------------------------------------------------
$(document).ready(function(){
    AppModuleCore = new AppModuleCore;

    var options = {};
    AppModuleCore.init(options);

});

好,几点
只有将代码包装在构造函数中才有意义

  1. 您将实例化多个
  2. 您要调用的对象上具有“公共”方法

您的代码不具备这些特征。 我说这是因为您的jQuery选择器a#clicker是硬编码的,所以我假设您不想将相同的事件多次绑定到它们?

您最好使用一个函数(也许是您的init)或一个对象常量来限制您的范围。

function init( options ) {

    var defaultsOptions = {};    
    var privateVar = 'only in this scope';

    //extend your default options with options here
    //using jquery
    options = $.extend( defaultOptions, options );

    // this function is completely private to this scope
    function privatefunction() {
        //do stuff
    }

    function handleClickerClick( event ){
        alert("clicker was clicked");
    }

    // you don't need to wrap your handler in an anonymous function unless
    // you're doing some work to the event before forwarding:- just give a 
    // reference to your handler
    // the handler has access to other members of this scope, we're in a closure
    $(options.selector).click( handleClickerClick );

    //etc

}

init( {selector: 'a#clicker'} );

关于风格注:当别名this具有相同名称的构造函数,然后添加方法的别名,它乍看上去像要添加静态方法来构造。 这可能会使以后查看您的代码却没有注意到别名的人感到困惑。

function C() {

    // a static method i.e a property of the constructor, C not objects created with it
    // it is a bit wierd that it is defined in the constructor but not unheard of
    C.staticMethod = function(){};

    //quite plainly a method of objects of this type, easy to understand
    this.method = function(){};

}

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