前端常用的js函数方法
时间：2022-09-08 09:01:19|栏目：JavaScript代码|点击： 次
1.邮箱
export const isEmail = (e) => {
return /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((.[a-zA-Z0-9_-]{2,3}){1,2})$/.test(e)
}
2.手机号码
export const isMobile = (e) => {
return /^1[0-9]{10}$/.test(e)
}
3.电话号码
export const isPhone = (e) =>{
return /^([0-9]{3,4}-)?[0-9]{7,8}$/.test(e)
}
4.是否url地址
export const isURL = (e) => {
return /^http[s]?:\/\/.*/.test(e)
}
5.是否字符串
export const isNumber = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1) === 'String'
}
6.是否数字
export const isNumber = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1) ==='Number'
}
7.是否boolean
export const isBoolean = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1) ==='Boolean'
}
8.是否函数
export const isFunction = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1) === 'Function'
}
9.是否为null
export const isNull = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Null'
}
10.是否undefined
export const isUndefined = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Undefined'
}
11.是否对象
export const isObject = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1) === 'Object'
}
12.是否数组
export const isArray = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Array'
}
13.是否时间
export const isDate = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Date'
}
14.是否正则
export const isRegExp = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='RegExp'
}
15.是否错误对象
export const isError = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Error'
}
16.是否Symbol函数
export const isSymbol = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Symbol'
}
17.是否Promise对象
export const isPromise = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1)==='Promise'
}
18.是否Set对象
export const isSet = (e) =>{
return Object.prototype.toString.call(e).slice(8,-1) ==='Set'
}
export const us = navigator.userAgent.toLowerCase();
19.是否是微信浏览器
export const isWeiXin = () =>{
return ua.match(/microMessenger/i) == 'micromessenger'
}
20.是否是移动端
export const isDeviceMobile =()=>{
return /android|webos|iphone|ipod|balckberry/i.test(ua)
}
