AngularJS：事件处理程序多数民众赞成只执行一次 [英] AngularJS: Event handler thats executed only once

问题描述

有一个指令或AngularJS实现什么。一（）功能的实现方式jQuery的？

Is there a directive or a way to implement in AngularJS what .one() function achieves with jquery?

也就是说，将事件附加到被执行一次的元素。

Ie, to attach an event to an element that gets executed only once.

推荐答案

电线了一个NG-单击您想要的元素，然后在你的控制器中的NG-点击功能有您切换到一个状态将变使NG-点击不再执行类似

Wire up an ng-click to the element you want, then in the ng-click function in your controller have a variable that you toggle to a state that would make the ng-click no longer execute something like

var firedOnce = false;
scope.myClickFunction = function(){
    if(firedOnce){ return; }
    //other code
    firedOnce = true;
}

您也可以连线了一个指令，做到这一点。

You could also wire up a directive to do it too.

修改：指令方式的jsfiddle： http://jsfiddle.net/4hDb3/

edit: Jsfiddle of directive method: http://jsfiddle.net/4hDb3/

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