JQuery ajax成功函数是否可以访问其中包含的对象? [英] Is there a way for a JQuery ajax success function to access the object it's contained in?

问题描述

我有这样的javascript:

I have javascript like this:

function Cat() { 

  this.meow = function() { // meow };

  $.ajax( do AJAX call, success: this.meow(); );

}

var TopCat = new Cat();

这不起作用，因为在成功功能的上下文中"this"没有意义.有一个优雅的解决方案吗?

This does not work because 'this' makes no sense in the context of the success function. Is there an elegant solution?

推荐答案

您正在寻找ajax方法的context参数.
它允许您设置将在其中调用所有回调的上下文.

You're looking for the context parameter to the ajax method.
It allows you to set the context in which all callbacks will be called.

function Cat() { 
    this.meow = function() { // meow };
    $.ajax({
        context: this, 
        success: function() { this.meow(); } 
    });    
}

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