//angular.isArray是否是数组
console.log(angular.isArray([])); //true
console.log(angular.isArray([1,2,1,3])); //true
//angular.isDate是否是日期
console.log(angular.isDate(‘2012-12-02‘)); //false
console.log(angular.isDate(new Date)); //true
//angular.isDefined引用对象是否定义
console.log(angular.isDefined(undefined));//false
console.log(angular.isDefined([]));//true
//angular.isElement确定引用是否为DOM元素（或包装的jQuery元素）。
var oBody = document.getElementsByTagName(‘body‘)[0];
console.log(angular.isElement(oBody));
console.log(angular.isElement([]));
//angular.isFunction引用对象是否是函数
var fn = new Function;
console.log(angular.isFunction(new Function));//true
console.log(angular.isFunction({}));//false
//angular.isNumber
console.log(angular.isNumber(5));//true
console.log(angular.isNumber([1,5,6]));//false
//angular.isObject确定引用是否为对象。与JavaScript中的typeof不同，null不被视为对象。请注意，JavaScript数组是对象
console.log(angular.isObject([]));//true
console.log(angular.isObject(null));//false
//angular.isString引用对象是否是字符串
console.log(angular.isString(‘sjdklfl‘));//true
console.log(angular.isString(123));//false
//angular.isUndefined引用对象是否是Undefined
console.log(angular.isUndefined(undefined));//true
console.log(angular.isUndefined(123));//false

angular.isArray,angular.isDate,angular.isDefined,angular.isElement,angular.isFunction,angular.isNumber,angular.isObject,angular.isString,angular.isUndefined