$locationChangeSuccess 和 $locationChangeStart 有什么区别? [英] What's the difference between $locationChangeSuccess and $locationChangeStart?

问题描述

$locationChangeSuccess 和 $locationChangeStart 有什么区别?

它们都是与 window.location 相关的未记录事件.

They are both undocumented events related to window.location.

推荐答案

$locationChangeStart 在 AngularJS 开始根据通过 $location 完成的更改更新浏览器位置时触发服务($location.path(), $location.search()).

The $locationChangeStart is fired when AngularJS starts to update browser's location based on mutations done via $location service ($location.path(), $location.search()).

应用程序可能会侦听 $locationChangeStart 事件并对其调用 preventDefault().在这种情况下，第二个事件 ($locationChangeSuccess) 将不会广播.

It might happen that an application will listen to the $locationChangeStart event and will call preventDefault() on it. In this case the second event ($locationChangeSuccess) won't be broadcasting.

简而言之:$locationChangeStart 在位置更新时触发.如果没有阻止第一个操作，则后面跟着 $locationChangeSuccess.

In short: $locationChangeStart fires when the location gets updated. It is followed by $locationChangeSuccess if the first action wasn't prevented.

源代码的相关部分在这里:https://github.com/angular/angular.js/blob/2508b47c1a34dfc834f8fde858574f81af4d287e/src/ng/location.js#L598

Relevant bits of the source code are here: https://github.com/angular/angular.js/blob/2508b47c1a34dfc834f8fde858574f81af4d287e/src/ng/location.js#L598

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