如何始终运行约code当一个承诺在Angular.js得到满足 [英] How to always run some code when a promise is fulfilled in Angular.js

问题描述

在我Angular.js的应用程序，我跑了一些异步操作。它开始我盖上模态DIV应用程序之前，再一次操作完成后，我需要删除的分区，操作是否成功与否。

In my Angular.js application, I'm running some asynchronous operation. Before it starts I cover the application with a modal div, then once the operation is complete, I need to remove the div, whether the operation was successful or not.

目前我有这样的：

LoadingOverlay.start(); 
Auth.initialize().then(function() {
    LoadingOverlay.stop();
}, function() {
    LoadingOverlay.stop(); // Code needs to be duplicated here
})

它工作得很好，不过，我想preFER有清洁的东西像这样的伪code：

It works well, however I would prefer to have something cleaner like this pseudo-code:

LoadingOverlay.start(); 
Auth.initialize().finally(function() { // *pseudo-code* - some function that is always executed on both failure and success.
    LoadingOverlay.stop();
})

我以为这是一个相当普遍的问题，所以我想这是可以做到，但无法找到在doc什么。任何想法，如果这是可以做到？

I assume it's quite a common problem, so I was thinking it could be done but cannot find anything in the doc. Any idea if it can be done?

推荐答案

该功能已在实施这个要求拉现在是AngularJS的一部分。它最初是一个名为总是再后来更名为最后，所以code应该如下：

The feature has been implemented in this pull request and is now part of AngularJS. It was initially called always and then later renamed to finally, so the code should be as follow:

LoadingOverlay.start(); 
Auth.initialize().then(function() {
    // Success handler
}, function() {
    // Error handler
}).finally(function() {
    // Always execute this on both error and success
});

请注意，由于最后是保留关键字，可能有必要使它成为一个字符串：

Note that since finally is a reserved keyword, it might be necessary to make it a string:

$http.get('/foo')['finally'](doSomething);

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