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)
}