前端常用的js函数方法

export const isEmail = (e) => {return /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((.[a-zA-Z0-9_-]{2,3}){1,2})$/.test(e)}

export const isMobile = (e) => {return /^1[0-9]{10}$/.test(e)}

export const isPhone = (e) =>{return /^([0-9]{3,4}-)?[0-9]{7,8}$/.test(e)}

export const isURL = (e) => {return /^http[s]?:////.*/.test(e)}

export const isNumber = (e) =>{return Object.prototype.toString.call(e).slice(8,-1) === 'String'}

export const isNumber = (e) =>{return Object.prototype.toString.call(e).slice(8,-1) ==='Number'}

export const isBoolean = (e) =>{return Object.prototype.toString.call(e).slice(8,-1) ==='Boolean'}

export const isFunction = (e) =>{return Object.prototype.toString.call(e).slice(8,-1) === 'Function'}

export const isNull = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Null'}

export const isUndefined = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Undefined'} 

export const isObject = (e) =>{return Object.prototype.toString.call(e).slice(8,-1) === 'Object'}

export const isArray = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Array'} 

export const isDate = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Date'} 

export const isRegExp = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='RegExp'}

export const isError = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Error'}

export const isSymbol = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Symbol'}

export const isPromise = (e) =>{return Object.prototype.toString.call(e).slice(8,-1)==='Promise'}

export const isSet = (e) =>{return Object.prototype.toString.call(e).slice(8,-1) ==='Set'}export const us = navigator.userAgent.toLowerCase();

export const isWeiXin = () =>{return ua.match(/microMessenger/i) == 'micromessenger'}

export const isDeviceMobile =()=>{return /android|webos|iphone|ipod|balckberry/i.test(ua)}