AngularJS API之isXXX()

<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>