How to reach variable outside the ng-repeat scope

问题

Is possible to reach variable outside the ng-repeat scope?

jsfiddle: http://jsfiddle.net/zcbhubrw/

Here is the code:

HTML

<div class="section" ng-app="phonecatApp" ng-controller="PhoneListCtrl">
            <div class="slide" >
                <div class="container">
                    <h2 class="section-title">Selected Mobiles</h2>
                </div>
                <div class="container-fluid fix ver2">
                    <div class="col-md-3 work-thumb" ng-repeat="phone in phones">
                        <a href="#" ng-click="count = {{$index}}">
                            {{phone.name}}
                        </a>
                    </div>
                </div>
            </div>
    <p>Count: {{count}}</p>
</div>

Controller

var phonecatApp = angular.module('phonecatApp', []);

phonecatApp.controller('PhoneListCtrl', function ($scope) {
  $scope.phones = [
    {'name': 'Nexus S',
     'snippet': 'Fast just got faster with Nexus S.'},
    {'name': 'Motorola XOOM™ with Wi-Fi',
     'snippet': 'The Next, Next Generation tablet.'},
    {'name': 'MOTOROLA XOOM™',
     'snippet': 'The Next, Next Generation tablet.'}
  ];
});

I need to reach the {{count}} variable for further usage.

回答1:

you can call a function while clicking the list inside ng-repeat like this

<a href="#" ng-click="setCount($index)">

and defining the function in controller

 $scope.setCount = function(index) {
    $scope.count = index;
} ;

and updating the count value when you click

Here is a working plunker with your code,

http://embed.plnkr.co/rAbanmAR2Chw3P501tDc/preview

Hope this helps!

回答2:

You can create function in the controller to set the count or refer the parent scope from inside the ng-repeat

ng-click="$parent.count = $index"

using parent scope

using function

来源：https://stackoverflow.com/questions/30288248/how-to-reach-variable-outside-the-ng-repeat-scope