ng中的ng-function中會有些方法,便於咱們進行js代碼的編寫javascript
關於angular.extend(dst, src);
經過從src
對象複製全部屬性到dst
來擴展目標對象dst
。你能夠指定多個src
對象。html
注意:angular.extend(....)只是簡單的對象之間的相互引用,java
經典的demo ;angularjs
<!DOCTYPE html>
<html ng-app="extendApp">
<head>
<meta charset="UTF-8">
<title></title>
<script src="http://code.angularjs.org/1.2.3/angular.min.js"></script>
</head>
<body>
<div ng-controller="extendController">
<button ng-click="extend()">點擊我!</button>
</div>
</body>
</html> 數組
<script type="text/javascript">
angular.module("extendApp", [])
.controller("extendController", function($scope)
{
$scope.baby =
{
cry : function()
{
console.log("I can only cry!");
}
}
$scope.adult =
{
earn : function()
{
console.log("I can earn money!");
},
lover:
{
love:function()
{
console.log("I love you!");
}
}
}
$scope.human = {}
$scope.hehe = "hehe ";
$scope.extend = function()
{
angular.extend($scope.human, $scope.baby, $scope.adult);
$scope.human.cry();
$scope.human.earn();
// $scope.human 和$scope.adult其實引用的是同一個對象-
$scope.human.lover.love = function()
{
console.log("I hate you!");
}
//這兩行都會輸出「I hate you !",可憐的adult對象, 他把本身的lover分享給了human! -->
$scope.human.lover.love();
$scope.adult.lover.love();
}
});
</script>app
結果:spa
I can only cry!
I can earn money!
I hate you!
I hate you!code
拓展:關於對象,數組的複製,咱們能夠進一步的瞭解angular.copy();的使用方法htm