在多个Ajax请求上时，我可以依赖jQuery。响应的顺序吗？ [英] Can I rely on the order of responses from jQuery.when on multiple Ajax requests

问题描述

此帖子：
https://stackoverflow.com/a/17548609/985704

在执行多个同时ajax请求时使用jQuery。

  var个请求= Array（）; 
 requests.push（$。get（’responsePage.php？data = foo’））; 
 requests.push（$。get（’responsePage.php？data = bar’））; 
 
 var defer = $ .when.apply（$，个请求）; 
 defer.done（function（）{
 
 //仅在每个ajax请求完成后才执行
 
 $ .each（arguments，function（index ，responseData）{
 // responseData将包含每个特定请求的响应信息数组
}）; 
 
}）； 
  

完成所有请求后，我可以确定（$ .each）的参数是按照与请求相同的顺序？

解决方案

Per JasonP ：（谢谢）

<是的。 传递给doneCallbacks的参数为每个Deferred提供了解析的值，并与Deferreds传递给jQuery.when（）的顺序匹配。 api.jquery.com/jQuery.when –

Per this post: https://stackoverflow.com/a/17548609/985704

Using jQuery.when to perform multiple simultaneous ajax requests.

var requests = Array();
requests.push($.get('responsePage.php?data=foo'));
requests.push($.get('responsePage.php?data=bar'));

var defer = $.when.apply($, requests);
defer.done(function(){

    // This is executed only after every ajax request has been completed

    $.each(arguments, function(index, responseData){
        // "responseData" will contain an array of response information for each specific request
    });

});

When all requests are done, can I be sure that the arguments (of the $.each) are in the same order as the requests? Is this documented somewhere?

解决方案

Per JasonP: (thank you)

Yes. "The arguments passed to the doneCallbacks provide the resolved values for each of the Deferreds, and matches the order the Deferreds were passed to jQuery.when()." api.jquery.com/jQuery.when –

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