获取click元素的索引 [英] Get the index of the click element

问题描述

我正在尝试获取clicked元素的索引，但在控制台中一直保持 -1 .我正在使用 Array.prototype 从 nodelist

I am trying to get the index of the clicked element but I keep getting -1 in the console. I am using Array.prototype to get the indexOf from the nodelist

HTML:

<div ng-app='app' ng-controller='mainCtrl'>
  <div app-click="">
    <div ng-repeat="json in myJson">
      <li>{{json}}</li>
    </div>
  </div>
</div>

JS:

.directive('appClick', function() {
  return {
    restrict: 'A',
    scope: true,
    controller: function($scope, $element) {
      $element.bind("click",function(e){
            var index = Array.prototype.indexOf.call($element.children(), e.target);
          console.log(index);
      });
    }
  }
});

JSFiddle演示

JSFiddle Demo

推荐答案

其他选项是设置索引

<div ng-app='app' ng-controller='mainCtrl'>
  <div app-click="">
    <div ng-repeat="json in myJson">
      <li data-index="{{$index}}">{{json}}</li>
    </div>
  </div>
</div>

并点击阅读它

e.target.dataset.index

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