angular.js watch 监听不到input的值的变化

问题描述

<input type='text' name='name' ng-model='inputname' ng-init='inputname=’hello’'> <span>{{inputname}}</span> <button type='button' name='button' ng-click='change()'>改变值</button>

$scope.change=function(){ $scope.inputname='world';}$scope.$watch('$scope.inputname',function(newValue,oldValue){ console.log(newValue); console.log(oldValue); console.log($scope.inputname);})

问题解答

$watch方法不对

$scope.$watch(’inputname’, function(newValue,oldValue){ console.log(newValue); console.log(oldValue); console.log($scope.inputname);})