AngularJS API之isXXX()

Angular中保存了很多的判断方法，可以用来验证对象是否符合某种要求，详细的参考代码样例即可

<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
</head>
<body ng-app="myApp">
	<div ng-controller="myCtrl" id="test">
		{{ isArray }} <br><br>
		{{ isDate }} <br><br>
		{{ isUnDefined }} <br>
		{{ isDefined }} <br><br>
		{{ DocumentisElement }} <br>
		{{ DivisElement }} <br><br>
		{{ isFunction }} <br><br><br>
		{{ isNumber1 }} <br>
		{{ isNumber2 }} <br>
		{{ isNumber3 }} <br>
		{{ isNumber4 }} <br><br>
		{{ isObject1 }} <br>
		{{ isObject2 }} <br>
		{{ isObject3 }} <br>
		{{ isObject4 }} <br><br>
		{{ isString1 }} <br>
		{{ isString2 }} <br>
		{{ isString3 }} <br>
		{{ isString4 }} <br><br>
	</div>
	<script type="text/javascript">
	var app = angular.module("myApp",[]);
	app.controller("myCtrl",function($scope){
		
		var arr = ["1","2","3"];
		$scope.isArray = angular.isArray(arr);//true

		var date = new Date();
		$scope.isDate = angular.isDate(date);//true
		
		var UnDefined;
		$scope.isUnDefined = angular.isUndefined(UnDefined);//true
		var Defined = "";
		$scope.isDefined = angular.isDefined(Defined);//true

		$scope.DocumentisElement = angular.isElement(document);//true
		$scope.DivisElement = angular.isElement(document.getElementById("test"));//true

		$scope.isFunction = angular.isFunction(function(){});//true

		$scope.isNumber1 = angular.isNumber(4);//true
		$scope.isNumber2 = angular.isNumber(4.3);//true
		$scope.isNumber3 = angular.isNumber(10/0);//true
		$scope.isNumber4 = angular.isNumber(null);//false

		$scope.isObject1 = angular.isObject(null);//false
		$scope.isObject2 = angular.isObject(undefined);//false
		$scope.isObject3 = angular.isObject(function(){});//false
		$scope.isObject4 = angular.isObject(date);//true

		$scope.isString1 = angular.isString("value");//true
		$scope.isString2 = angular.isString('fds');//true
		$scope.isString3 = angular.isString(null);//false
		$scope.isString4 = angular.isString(4);//false
	});
	</script>
</body>
</html>