在文档准备好之前从服务器获取AJAX数据（jQuery） [英] Get AJAX data from server before document ready (jQuery)

问题描述

我想从服务器获取一些数据并用JavaScript将其写入全局数组。然后在文档就绪中我想使用这个数组来创建一些新元素（选项）。我应该有这个数据的全局数组，因为在第一次加载客户端后可以使用这些数据修改用户界面。

I want take some data from server and write it to global array in JavaScript. Then in document ready I want to use this array to create some new elements (options). I should have global array with this data, because after first load client can modify user interface using this data.

$(document).ready(function () {
    UseAjaxQueryForFillGlobalArray();
    MakingInterfaceUsingGlobalArray();       
});

但我有奇怪的行为，当我调试页面时，我可以看到该方法 MakingInterfaceUsingGlobalArray 首先工作，刚刚通过AJAX使用方法 UseAjaxQueryForFillGlobalArray 获取数据后，我没有带有加载数据的新接口（html选项）。

But I have strange behavior, when I debug page, I can see that method MakingInterfaceUsingGlobalArray working first, and just after I get data via AJAX with method UseAjaxQueryForFillGlobalArray and I don't have new interface(html options) with loaded data.

如果我喜欢这样：

UseAjaxQueryForFillGlobalArray();
$(document).ready(function () {     
    MakingInterfaceUsingGlobalArray();       
});

然后在Firefox工作正常，但在第一次加载时其他网络浏览器不正确（例如转到这个页面的链接）。但如果我用F5刷新，我有正确的用户界面，它通过AJAX加载到全局JS数组。

Then in Firefox working fine, but in another web-browsers incorrect in first load (for example go to this page by link). But if I refreshing by F5, I have correct user interface which loaded via AJAX to global JS array.

如何解决？也许我使用完全不正确的方式？

How to fix it? Maybe I using totally incorrect way?

评论后添加：

这是我的ajax函数：

This is my ajax function:

function UseAjaxQueryForFillGlobalArray(){
    var curUserId = '<%= Master.CurrentUserDetails.Id %>';
    var curLocale = '<%= Master.CurrentLocale %>';
    $.ajax({
        type: "POST",
        url: "/segment.aspx/GetArrayForCF",
        data: '{"userId":"' + curUserId + '","curLocale":"' + curLocale + '"}',
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (msg) {
            //here is I doing parse my string from server and fill arrays.     
        }
    });
}

推荐答案

我认为问题是你不确切知道第一个函数何时返回，因为它是异步的。所以你应该只在回调中使用数组

I think that the problem is that you don't know exactly when the first function returns, since it'a asynchronous. So you should use the array in the callback only

function UseAjaxQueryForFillGlobalArray() {
    // make the call
    $.post(url, data, function() {
        // let's be sure that the dom is ready
        $(document).ready(function () {    
            // use the array
            MakingInterfaceUsingGlobalArray();      
        }
    }
}();// invoke the function

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