通过对AJAX传递变量 [英] Passing variables through to AJAX

问题描述

我有一些变数，我想传递到一个AJAX调用：

I have some variables that I would like to pass into an AJAX call:

例如。

var moo = "cow noise";

$.ajax({
    type: "POST",
    url: "",
    data: "",
    success: function(data){
            //return the variable here
            alert(moo);
    }
});

不过，哞回来不确定的。

注意的，我已经离开网​​址和数据空的目的 - 他们填充在我的code。

note, I've left url and data empty on purpose - they are populated in my code.

推荐答案

我猜你的code可能已经被包在 $（函数（）{...}）; 作为一个jQuery的事情。删除 VAR 将使其基本上 window.moo =牛噪音; 哪些工作，但污染这是命名空间不是你想要的。

I guess your code might have been wrapped in $(function(){ ... }); as an jQuery thing. remove var will make it basically window.moo = "cow noise"; Which works, but pollutes the namespaces which is not what you want.

不要污染全局命名空间，它会让你的另一code难以调试。 使用封闭这应该解决您的问题：

Do not try to pollute the global namespace, it will make your other code hard to debug. Use closure which should solve your issue:

var moo = "cow noise";

(function(moo){
    $.ajax({
        type: "POST",
        url: "",
        data: "",
        success: function(data){
            //return the variable here
            alert(moo);
        }
    });
})(moo);

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