我试图了解angular.copy会做什么。我在Angular js doc中看到了一个例子,但是在填写所有文本字段并单击“保存”按钮后无法确定为什么重置按钮不起作用。但是当我们点击重置按钮然后点击保存之前它就有效。有人请解释。谢谢提前
的index.html:
<div ng-controller="ExampleController">
<form novalidate class="simple-form">
<label>Name: <input type="text" ng-model="user.name" /></label><br />
<label>Age: <input type="number" ng-model="user.age" /></label><br />
Gender: <label><input type="radio" ng-model="user.gender" value="male" />male</label>
<label><input type="radio" ng-model="user.gender" value="female" />female</label><br />
<button ng-click="reset()">RESET</button>
<button ng-click="update(user)">SAVE</button>
</form>
<pre>form = {{user | json}}</pre>
<pre>master = {{master | json}}</pre>
</div>
script.js:
angular.
module('copyExample', []).
controller('ExampleController', ['$scope', function($scope) {
$scope.master = {};
$scope.reset = function() {
// Example with 1 argument
$scope.user = angular.copy($scope.master);
};
$scope.update = function(user) {
// Example with 2 arguments
angular.copy(user, $scope.master);
};
$scope.reset();
}]);
答案 0 :(得分:0)
$scope.user
甚至不存在。