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AngularJS ng-model 指令
AngularJS ng-model 指令ng-model 指令用于绑定应用程序数据到 HTML 控制器(input,select, textarea)的值。ng-model 指令ng-model 指令可以将输入域的值与 AngularJS 创建的变量绑定。AngularJS 实例<div ng-app="myApp" ng-controller="myCtrl"> 名字:
<input ng-model="name"></div><script>var app = angular.module('myApp', []);app.controller('myCtrl', function($scope) { $scope.name= "John Doe";});</script>尝试一下 ?双向绑定双向绑定,在修改输入域的值时, AngularJS 属性的值也将修改:AngularJS 实例<div ng-app="myApp" ng-controller="myCtrl"> 名字:
<input ng-model="name"> <h1>你输入了:
{{name}}</h1></div>尝试一下 ?验证用户输入AngularJS 实例<form ng-app="" name="myForm"> Email:
<input type="email" name="myAddress" ng-model="text"> <span ng-show="myForm.myAddress.$error.email">不是一个合法的邮箱地址</span></form>尝试一下 ?以上实例中,提示信息会在 ng-show 属性返回 true 的情况下显示。应用状态ng-model 指令可以为应用数据提供状态值(invalid,dirty, touched, error):
AngularJS 实例<form ng-app="" name="myForm" ng-init="myText = 'test@k88.net'"> Email:
<input type="email" name="myAddress" ng-model="myText"required></p> <h1>状态</h1> {{myForm.myAddress.$valid}} {{myForm.myAddress.$dirty}} {{myForm.myAddress.$touched}}</form>尝试一下 ?CSS 类ng-model 指令基于它们的状态为 HTML 元素提供了 CSS 类:AngularJS 实例<style>input.ng-invalid { background-color:
lightblue;}</style><body><form ng-app="" name="myForm"> 输入你的名字:
<input name="myAddress" ng-model="text" required></form>尝试一下 ?ng-model 指令根据表单域的状态添加/移除以下类:ng-emptyng-not-emptyng-touchedng-untouchedng-validng-invalidng-dirtyng-pendingng-pristine
<input ng-model="name"></div><script>var app = angular.module('myApp', []);app.controller('myCtrl', function($scope) { $scope.name= "John Doe";});</script>尝试一下 ?双向绑定双向绑定,在修改输入域的值时, AngularJS 属性的值也将修改:AngularJS 实例<div ng-app="myApp" ng-controller="myCtrl"> 名字:
<input ng-model="name"> <h1>你输入了:
{{name}}</h1></div>尝试一下 ?验证用户输入AngularJS 实例<form ng-app="" name="myForm"> Email:
<input type="email" name="myAddress" ng-model="text"> <span ng-show="myForm.myAddress.$error.email">不是一个合法的邮箱地址</span></form>尝试一下 ?以上实例中,提示信息会在 ng-show 属性返回 true 的情况下显示。应用状态ng-model 指令可以为应用数据提供状态值(invalid,dirty, touched, error):
AngularJS 实例<form ng-app="" name="myForm" ng-init="myText = 'test@k88.net'"> Email:
<input type="email" name="myAddress" ng-model="myText"required></p> <h1>状态</h1> {{myForm.myAddress.$valid}} {{myForm.myAddress.$dirty}} {{myForm.myAddress.$touched}}</form>尝试一下 ?CSS 类ng-model 指令基于它们的状态为 HTML 元素提供了 CSS 类:AngularJS 实例<style>input.ng-invalid { background-color:
lightblue;}</style><body><form ng-app="" name="myForm"> 输入你的名字:
<input name="myAddress" ng-model="text" required></form>尝试一下 ?ng-model 指令根据表单域的状态添加/移除以下类:ng-emptyng-not-emptyng-touchedng-untouchedng-validng-invalidng-dirtyng-pendingng-pristine
AngularJS ng-model 指令