Angular 观察多个值，没有 ng-repeat

Question

是否可以在不使用 ng-repeat 的情况下在同一个 $watch 中观察多个 $scope 值？ Fiddle

<div ng-app="myapp">
    <div ng-controller="ctrlParent">
        <input type="checkbox" ng-model="prov1">
        <input type="checkbox" ng-model="prov2">
            <div>{{prov1}}</div>
            <div>{{prov2}}</div>
    </div>
</div>

    var app = angular.module('myapp', []);
    app.controller('ctrlParent', function ($scope) {

    $scope.prov1 = true;
    $scope.prov2 = true;
    $scope.ids = {};

    $scope.$watch('prov1', function (newValue, oldValue) {
        if (newValue != oldValue) {
            console.log("wee");
        }
    });
});

Answer 1

从 angular 1.3 开始，您可以按如下方式使用 $scope.$watchGroup：

$scope.$watchGroup(['prov1', 'prov2'], function (newValue, oldValue) {
    if (newValue != oldValue) {
        console.log("wee");
    }
});

Fiddle: http://jsfiddle.net/wr4twkzm/1/

Angular 观察多个值，没有 ng-repeat

Angular watch multiple values, without ng-repeat

javascript

watch

angularjs