angular提供了一個可以複制對象的api——copy(source,destination),它會對source對象執行深拷貝。
angular的操作實質是對dom的model進行操作,幾乎所有的渲染都應放在model層。
<html ng-app="myApp">
<head>
<meta charset='utf-8'>
<script src="./angular.min.js"></script>
</head>
<div ng-controller="Controller">
<form>
Name: <input type="text" ng-model="user.name" /><br />
E-mail: <input type="email" ng-model="user.email" /><br />
Gender: <input type="radio" ng-model="user.gender" value="male" />male
<input type="radio" ng-model="user.gender" value="female" />female<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>
var app = angular.module('myApp', []);
app.controller('Controller', ['$scope', function($scope) {
$scope.master= {};
$scope.update = function(user) {
// Example with 1 argument
$scope.master= angular.copy(user);
};
$scope.reset = function() {
// Example with 2 arguments
angular.copy({}, $scope.user);//重置資料的層面放在此處,此處将一個空對象{}深拷貝到user中,可以根據需求放入原來的模型。
};
$scope.reset();
}]);
</script>
</html>