我有一个简单的Angular程序,只有当输入值为'Peter'时才能显示范围。我希望如果我改变输入值,那么span必须消失,但是当我试图改变输入框的值时,它不允许我这样做。由于我无法改变输入值,问题是什么?
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular.min.js"></script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<input type="text" ng-model="name"/>
<span ng-show="name='peter'">{{name}}</span>
<script>
//module declaration
var app = angular.module('myApp', []);
//controller declaration
app.controller('myCtrl',function($scope){
$scope.name = "Peter";
});
</script>
</body>
</html>
答案 0 :(得分:2)
将ng-show
更改为
<span ng-show="name.toLowerCase()==='peter'">{{name}}</span>
您正在使用赋值运算符,但您需要比较这些值并更改输入值的大小写。
<!DOCTYPE html>
<html ng-app="myApp">
<head>
<script data-require="angular.js@1.4.8" data-semver="1.3.0-beta.5" src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
<script src="app.js"></script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<input type="text" ng-model="name"/>
<span ng-show="name.toLowerCase()==='peter'">{{name}}</span>
<script>
//module declaration
var app = angular.module('myApp', []);
//controller declaration
app.controller('myCtrl',function($scope){
$scope.name = "Peter";
});
</script>
</body>
</html>
&#13;
答案 1 :(得分:0)
试试这个。
o_is_follow
20120