angular.js中 ng-repeat="i in [1]" ng-repeat="item in [1, 2]"什么意思

Question

<div ng-controller="EventController">
  Root scope
  <tt>MyEvent</tt> count: {{count}}
  <ul>
     <li ng-repeat="i in [1]" ng-controller="EventController">
        <button ng-click="$emit('MyEvent')">
           $emit('MyEvent')
        </button>
        <button ng-click="$broadcast('MyEvent')">
           $broadcast('MyEvent')
        </button>
        <br>
        Middle scope
        <tt>MyEvent</tt> count: {{count}}
        <ul>
           <li ng-repeat="item in [1, 2]" ng-controller="EventController">
              Leaf scope
              <tt>MyEvent</tt> count: {{count}}
           </li>
        </ul>
     </li>
  </ul>
</div>

Answer 1

同问。。

Answer 2

[1]数组里有一个元素1，ng-repeat="i in [1]"遍历1次[1，2]数组里有一个元素1，2，ng-repeat="i in [1，2]"遍历2次

Answer 3

数组[1] 数组[1,2]

Answer 4

I am test