#前端常用的 59 个工具类【持续更新】

前言

前端开发有时会处理一部分后台返回的数据,或者根据数据判断做一些处理;
这个时候就非常有必要将一些常用的工具类封装起来;
本文根据常用的一些工具类封装了 59 个方法,当然还有很多用的较少前期没有录入,后期持续跟新;
源码地址,utils-lan 源码地址,欢迎 star!

使用

1.方法一

npm i -S utils-lan
import utils from 'utils-lan'
console.log(utils.arrJudge(['1','2']))
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2.方法二 git clone utils-lan 源码地址下来导入项目;

3.关于类名
是根据字面量来命名的,方法首个驼峰表示所属类型,后面是方法作用;
如 arrAndSet 一看就是数组的方法,是处理交集的;
如果实在难以忍受,可以采用方法 2,导入本地对项目进行更改.

arr

1.arrAndSet

并集

/*** 数组并集,只支持一维数组* @param {Array} arrOne* @param {Array} arrTwo*/
export const arrAndSet = (arrOne, arrTwo) => {return arrOne.concat(arrTwo.filter(v => !arrOne.includes(v)))
}
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2.arrIntersection

交集

/*** 数组交集,只支持一维数组* @param {Array} arrOne* @param {Array} arrTwo*/
export const arrIntersection = (arrOne, arrTwo) => {return arrOne.filter(v => arrTwo.includes(v))
}
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3.arrDifference

差集

/*** 数组差集,只支持一维数组* @param {Array} arrOne* @param {Array} arrTwo* eg: [1, 2, 3] [2, 4, 5] 差集为[1,3,4,5]*/
export const arrDifference = (arrOne, arrTwo) => {return arrOne.concat(arrTwo).filter(v => !arrOne.includes(v) || !arrTwo.includes(v))
}
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4.arrTwoToArrObj

两个数组合并成一个数组对象

/*** 两个数组合并成一个对象数组,考虑到复杂度,所以目前支持两个一维数组* @param {Array} arrOne* @param {Array} arrTwo* @param {oneKey} oneKey 选填,如果两个都未传,直接以 arrOne 的值作为 key,arrTwo 作为 value* @param {twoKey} twoKey*/
export const arrTwoToArrObj = (arrOne, arrTwo, oneKey, twoKey) => {if(!oneKey&&!twoKey){return arrOne.map((oneKey, i) => ({ [oneKey]:arrTwo[i] }))// 或者,此方法针对将 arrTwo 的索引作为 key 的情况,arrTwo 值会覆盖 arrOne// return Object.assign({}, arrOne, arrTwo)}else{return arrOne.map((oneKey, i) => ({ oneKey, twoKey: arrTwo[i] }))}
}
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5.arrObjSum

数组对象求和

/*** 数组对象求和* @param {Object} arrObj 数组对象* @param {String} key 数组对应的 key 值*/
export const arrObjSum = (obj, key) => {return obj.reduce((prev, cur) => prev + cur.key, 0)
}
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6.arrConcat

数组合并

/*** 数组合并,目前合并一维* @param {Array} arrOne 数组* @param {Array} arrTwo 数组*/
export const arrConcat = (arrOne, arrTwo) => {return [...arrOne, ...arrTwo]
}
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7.arrSum

数组求和

/*** 数组求和* @param {Array} arr 数组*/
export const arrSum = arr => {return arr.reduce((prev, cur)=> {return prev + cur}, 0)
}
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8.arrIncludeValue

数组是否包含某值

/*** 数组是否包含某值* @param {Array} arr 数组* @param {}  value 值,目前只支持 String,Number,Boolean*/
export const arrIncludeValue = (arr,  value) => {return arr.includes( value)
}
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9.arrMax

数组最大值

/*** 数组最大值* @param {Array} arr  数组*/
export const arrMax = arr => {return Math.max(...arr)
}
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10.arrRemoveRepeat

数组去重

/*** 数组去重* @param {Array} arr  数组*/
export const arrRemoveRepeat = arr => {return Array.from(new Set(arr))
}
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11.arrOrderAscend

数组排序

/*** 数组排序* @param {Array} arr  数组* @param {Boolean} ascendFlag   升序,默认为 true*/
export const arrOrderAscend = (arr, ascendFlag=true) => {return arr.sort((a, b) => {return ascendFlag ? a - b : b - a})
}
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12.arrJudge

判断是否是数组

/*** 判断是否是数组* @param {Array}} arr 数组*/
export const arrJudge = arr => Array.isArray(arr)
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check

13.checkNum

判断是否是数字

/***  判断是否是数字* @param {Number} data*/
export const checkNum = data => /^\d{1,}$/g.test(data)
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14.checkLetter

判断是否是字母

/***  判断是否是字母* @param {Number} data*/
export const checkLetter = data => /^[a-zA-Z]+$/g.test(data)
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15.checkLowercaseLetter

判断是否全部是小写字母

/***  判断是否全部是小写字母* @param {Number} data*/
export const checkLowercaseLetter = data => /^[a-z]+$/g.test(data)
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16.checkCapitalLetter

判断是否是大写字母

/***  判断是否是大写字母* @param {Number} data*/
export const checkCapitalLetter = data => /^[A-Z]+$/g.test(data)
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17.checkNumOrLetter

判断是否是字母或数字

/*** 判断是否是字母或数字* @param {Number || String} data  字符或数字*/
export const checkNumOrLetter = data => /^[0-9a-zA-Z]*$/g.test(data)
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判断是否是字母和数字的组合

/*** 判断是否是字母或数字* @param {Number || String} data  字符或数字*/
export const checkNumAndLetter = data => /^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,15}$/g.test(data)
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18.checkChinese

判断是否是中文

/*** 判断是否是中文* @param {String} data  中文*/
export const checkChinese = data => /^[\u4E00-\u9FA5]+$/g.test(data)
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19.checkChineseNumberLettter

判断是否是中文，数字或字母

export const checkChineseNumberLettter = data => /^[a-zA-Z0-9\u4e00-\u9fa5]+$/g.test(data)
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20.checkEmail

判断是否是邮箱地址

/*** 判断是否是邮箱地址* @param {String} data*/
export const checkEmail = data => {const reg = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/gif (reg.test(data)) return true
}
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21.checkTelphone

判断是否是手机号

/*** 判断是否是手机号，只要是13,14,15,16,17,18,19开头即可* @param {String} data*/
export const checkTelphone = data => {const reg = /^((\+|00)86)?1[3-9]\d{9}$/gif (reg.test(data)) return true
}
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22.checkUrl

判断是否是正确的网址

/*** 判断是否是正确的网址* @param {String} url 网址*/
export const checkUrl = url => {const a = document.createElement('a')a.href = urlreturn [/^(http|https):$/.test(a.protocol),a.host,a.pathname !== url,a.pathname !== `/${url}`].find(x => !x) === undefined
}
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client

23.checkBrowser

/*** 判断是浏览器内核*/
export const checkBrowser = () => {const u = navigator.userAgent;const obj = {trident: u.indexOf("Trident") > -1, //IE内核presto: u.indexOf("Presto") > -1, //opera内核webKit: u.indexOf("AppleWebKit") > -1, //苹果、谷歌内核gecko: u.indexOf("Gecko") > -1 && u.indexOf("KHTML") == -1, //火狐内核}return Object.keys(obj)[Object.values(obj).indexOf(true)]
};
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24.checkIosAndroidIpad

判断是终端类型,值有ios,android,iPad

/*** 判断是终端类型,值有ios,android,iPad*/
export const checkIosAndroidIpad = () => {const u = navigator.userAgent;const obj = {ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端android: u.indexOf("Android") > -1 || u.indexOf("Linux") > -1, //android终端或者uc浏览器iPad: u.indexOf("iPad") > -1, //是否iPad}return Object.keys(obj)[Object.values(obj).indexOf(true)]
};
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25.checkWeixinQqUc

判断是否是微信,qq 或 uc

/*** 判断是否是微信,qq 或 uc*/
export const checkWeixinQqUc = () => {const u = navigator.userAgent;const obj = {weixin: u.indexOf("MicroMessenger") > -1, //是否微信qq: u.match(/QQ/i) == "qq"&&!u.indexOf('MQQBrowser') > -1, //是否QQuc: u.indexOf('UCBrowser') > -1}return Object.keys(obj)[Object.values(obj).indexOf(true)]
};
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26.checkIsIphoneX

检查是否是 IphoneX

/*** 检查是否是 IphoneX*/
export const checkIsIphoneX = () => {const u = navigator.userAgent;const isIOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);if (isIOS && screen.height >= 812) {return true;}
};
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file

27.fileFormatSize

格式化文件单位

/*** 格式化文件单位* @param {String || Number} size  文件大小(kb)*/
export const fileFormatSize = size => {var ivar unit = ['B', 'KB', 'MB', 'GB', 'TB', 'PB']for (i = 0; i < unit.length && size >= 1024; i++) {size /= 1024}return (Math.round(size * 100) / 100 || 0) + unit[i]
}
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obj

28.objIsEqual

判断两个对象是否相等,目前只支持对象值为简单数据类型的判断

/*** 判断两个对象是否相等,目前只支持对象值为简单数据类型的判断* @param {Object} oneObj  对象* @param {Object} twoObj 对象*/
export const objIsEqual = (oneObj, twoObj) => {const aProps = Object.getOwnPropertyNames(oneObj);const bProps = Object.getOwnPropertyNames(twoObj);if (aProps.length != bProps.length) {return false;}for (let i = 0; i < aProps.length; i++) {let propName = aProps[i];let propA = oneObj[propName];let propB = twoObj[propName];if ( propA !== propB) {return false;}}return true;
}
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29.objDeepClone

对象深度克隆;
1.JSON.stringify深度克隆对象;
2.无法对函数、RegExp等特殊对象的克隆;
3.会抛弃对象的constructor,所有的构造函数会指向Object;
4.对象有循环引用,会报错

/*** 对象深度克隆,* JSON.stringify深度克隆对象* 无法对函数 、RegExp等特殊对象的克隆,* 会抛弃对象的constructor,所有的构造函数会指向Object* 对象有循环引用,会报错* @param {Object}  obj 克隆的对象*/
export const objDeepClone = obj => {return clone(obj)
}const isType = (obj, type) => {if (typeof obj !== 'object') return false;// 判断数据类型的经典方法：const typeString = Object.prototype.toString.call(obj);let flag;switch (type) {case 'Array':flag = typeString === '[object Array]';break;case 'Date':flag = typeString === '[object Date]';break;case 'RegExp':flag = typeString === '[object RegExp]';break;default:flag = false;}return flag;
};/**
* deep clone
* @param  {[type]} parent object 需要进行克隆的对象
* @return {[type]}        深克隆后的对象
*/
const clone = parent => {// 维护两个储存循环引用的数组const parents = []const children = []const _clone = parent => {if (parent === null) return nullif (typeof parent !== 'object') return parentlet child, protoif (isType(parent, 'Array')) {// 对数组做特殊处理child = []} else if (isType(parent, 'RegExp')) {// 对正则对象做特殊处理child = new RegExp(parent.source, getRegExp(parent))if (parent.lastIndex) child.lastIndex = parent.lastIndex} else if (isType(parent, 'Date')) {// 对Date对象做特殊处理child = new Date(parent.getTime())} else {// 处理对象原型proto = Object.getPrototypeOf(parent)// 利用Object.create切断原型链child = Object.create(proto)}// 处理循环引用const index = parents.indexOf(parent)if (index !== -1) {// 如果父数组存在本对象,说明之前已经被引用过,直接返回此对象return children[index]}parents.push(parent)children.push(child)for (const i in parent) {// 递归child[i] = _clone(parent[i])}return child}return _clone(parent)
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storage

30.localStorageSet

localStorage 存贮
目前对象值如果是函数、RegExp等特殊对象存贮会被忽略

/*** localStorage 存贮* 目前对象值如果是函数 、RegExp等特殊对象存贮会被忽略* @param {String} key  属性* @param {Object} value 值*/
export const localStorageSet = (key, value) => {if (typeof (value) === 'object') value = JSON.stringify(value)localStorage.setItem(key, value)
}
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31.localStorageGet

localStorage 获取

/*** localStorage 获取* @param {String} key  属性*/
export const localStorageGet = (key) => {return localStorage.getItem(key)
}
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32.localStorageRemove

localStorage 移除

/*** localStorage 移除* @param {String} key  属性*/
export const localStorageRemove = (key) => {localStorage.removeItem(key)
}
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33.localStorageSetExpire

localStorage 存贮某一段时间失效

/*** localStorage 存贮某一段时间失效* @param {String} key  属性* @param {*} value 存贮值* @param {String} expire 过期时间,毫秒数*/
export const localStorageSetExpire = (key, value, expire) => {if (typeof (value) === 'object') value = JSON.stringify(value)localStorage.setItem(key, value)setTimeout(() => {localStorage.removeItem(key)}, expire)
}
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34.sessionStorageSet

sessionStorage 存贮

/*** sessionStorage 存贮* @param {String} key  属性* @param {*} value 值*/
export const sessionStorageSet = (key, value) => {if (typeof (value) === 'object') value = JSON.stringify(value)sessionStorage.setItem(key, value)
}
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35.sessionStorageGet

sessionStorage 获取

/*** sessionStorage 获取* @param {String} key  属性*/
export const sessionStorageGet = (key) => {return sessionStorage.getItem(key)
}
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36.sessionStorageRemove

sessionStorage 删除

/*** sessionStorage 删除* @param {String} key  属性*/
export const sessionStorageRemove = (key, value) => {sessionStorage.removeItem(key, value)
}
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37.sessionStorageSetExpire

sessionStorage 存贮某一段时间失效

/*** sessionStorage 存贮某一段时间失效* @param {String} key  属性* @param {*} value 存贮值* @param {String} expire 过期时间,毫秒数*/
export const sessionStorageSetExpire = (key, value, expire) => {if (typeof (value) === 'object') value = JSON.stringify(value)sessionStorage.setItem(key, value)setTimeout(() => {sessionStorage.removeItem(key)}, expire)
}
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38.cookieSet

cookie 存贮

/*** cookie 存贮* @param {String} key  属性* @param {*} value  值* @param String expire  过期时间,单位天*/
export const cookieSet = (key, value, expire) => {const d = new Date()d.setDate(d.getDate() + expire)document.cookie = `${key}=${value};expires=${d.toGMTString()}`
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39.cookieGet

cookie 获取

/*** cookie 获取* @param {String} key  属性*/
export const cookieGet = (key) => {const cookieStr = unescape(document.cookie)const arr = cookieStr.split('; ')let cookieValue = ''for (var i = 0; i < arr.length; i++) {const temp = arr[i].split('=')if (temp[0] === key) {cookieValue = temp[1]break}}return cookieValue
}
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40.cookieRemove

cookie 删除

/*** cookie 删除* @param {String} key  属性*/
export const cookieRemove = (key) => {document.cookie = `${encodeURIComponent(key)}=;expires=${new Date()}`
}
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str

41.strTrimLeftOrRight

去掉字符左右空格

/*** 去掉字符左右空格* @param {String} str 字符*/
export const strTrimLeftOrRight = str => {return str.replace(/(^\s*)|(\s*$)/g, "")
}
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42.strInclude

判断字符是否包含某值

/*** 判断字符是否包含某值* @param {String} str 字符* @param {String} value 字符*/
export const strInclude = (str, value) => {return str.includes(value)
}
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43.strBeginWith

判断字符是否以某个字符开头

/*** 判断字符是否以某个字符开头* @param {String} str 字符* @param {String} value 字符*/
export const strBeginWith = (str, value) => {return str.indexOf(value) === 0
}
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44.strReplace

全局替换某个字符为另一个字符

/*** 全局替换某个字符为另一个字符* @param {String} str 字符* @param {String} valueOne 包含的字符* @param {String} valueTwo 要替换的字符,选填*/
export const strReplace = (str, valueOne, valueTwo) => {return str.replace(new RegExp(valueOne,'g'), valueTwo)
}
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45.strToCapital

将字母全部转化成大写

/*** 将字母全部转化成大写* @param {String} str 字符*/
export const strToCapital = (str) => {return str.toUpperCase()
}
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46.strToLowercase

将字母全部转化成小写

/*** 将字母全部转化成小写* @param {String} str 字符*/
export const strToLowercase = (str) => {return str.toLowerCase()
}
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47.strToCapitalLetter

将字母全部转化成以大写开头

/*** 将字母全部转化成以大写开头* @param {String} str 字符*/
export const strToCapitalLetter = (str) => {const strOne = str.toLowerCase()return strOne.charAt(0).toUpperCase() + strOne.slice(1)
}
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thrDeb

48.throttle

节流

/*** 节流* @param {*} func 执行函数* @param {*} delay 节流时间,毫秒*/
export const throttle = function(func, delay) {let timer = nullreturn function() {if (!timer) {timer = setTimeout(() => {func.apply(this, arguments)// 或者直接 func()timer = null}, delay)}}
}
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49.debounce

防抖

/*** 防抖* @param {*} fn 执行函数* @param {*} wait 防抖时间,毫秒*/
export const debounce = function(fn, wait) {let timeout = nullreturn function() {if (timeout !== null) clearTimeout(timeout)// 如果多次触发将上次记录延迟清除掉timeout = setTimeout(() => {fn.apply(this, arguments)// 或者直接 fn()timeout = null}, wait)}
}
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time

50.getYear

获取年份

/*** 获取年份*/
export const getYear = () => {return new Date().getFullYear()
}
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51.getMonth

获取月份

/*** 获取当前月份* @param {Boolean} fillFlag 布尔值,是否补 0,默认为 true*/
export const getMonth = (fillFlag=true) => {const mon = new Date().getMonth() + 1const monRe = monif (fillFlag) mon < 10 ? `0${mon}` : monreturn monRe
}
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52.getDay

获取日

/*** 获取日* @param {Boolean} fillFlag 布尔值,是否补 0*/
export const getDay = (fillFlag=true) => {const day = new Date().getDate()const dayRe = dayif (fillFlag) day < 10 ? `0${day}` : dayreturn dayRe
}
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53.getWhatDay

星期几

/*** 获取星期几*/
export const getWhatDay = () => {return new Date().getDay() ? new Date().getDay() : 7
}
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54.getMonthNum

获取当前月天数

/*** 获取当前月天数* @param {String} year 年份* @param {String} month 月份*/
export const getMonthNum = (year, month) => {var d = new Date(year, month, 0)return d.getDate()
}
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55.getYyMmDdHhMmSs

获取当前时间 yyyy-mm-dd,hh:mm:ss

/*** 获取当前时间 yyyy-mm-dd,hh:mm:ss*/
export const getYyMmDdHhMmSs = () => {const date = new Date()const year = date.getFullYear()const month = date.getMonth() + 1const day = date.getDate()const hours = date.getHours()const minu = date.getMinutes()const second = date.getSeconds()const arr = [month, day, hours, minu, second]arr.forEach((item,index) => {arr[index]=item < 10 ? '0' + item : item})return (year +'-' +arr[0] +'-' +arr[1] +' ' +arr[2] +':' +arr[3] +':' +arr[4])
}
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56.timesToYyMmDd

时间戳转化为年月日

/*** 时间戳转化为年月日* @param times 时间戳* @param ymd 格式类型(yyyy-mm-dd,yyyy/mm/dd)* @param hms 可选,格式类型(hh,hh:mm,hh:mm:ss)* @returns {年月日}*/
export const timesToYyMmDd = (times, ymd,  hms) => {const oDate = new Date(times)const oYear = oDate.getFullYear()const oMonth = oDate.getMonth() + 1const oDay = oDate.getDate()const oHour = oDate.getHours()const oMin = oDate.getMinutes()const oSec = oDate.getSeconds()let oTime // 最后拼接时间// 年月日格式switch (ymd) {case 'yyyy-mm-dd':oTime = oYear + '-' + getzf(oMonth) + '-' + getzf(oDay)breakcase 'yyyy/mm/dd':oTime = oYear + '/' + getzf(oMonth) + '/' + getzf(oDay)break}// 时分秒格式switch (hms) {case 'hh':oTime = ' '+oTime + getzf(oHour)breakcase 'hh:mm':oTime = oTime + getzf(oHour) + ':' + getzf(oMin)breakcase 'hh:mm:ss':oTime = oTime + getzf(oHour) + ':' + getzf(oMin) + ':' + getzf(oSec)break}return oTime
}
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57.YyMmDdToTimes

将年月日转化成时间戳

/*** 将年月日转化成时间戳* @param {String} time yyyy/mm/dd 或yyyy-mm-dd 或yyyy-mm-dd hh:mm 或yyyy-mm-dd hh:mm:ss*/
export const YyMmDdToTimes = (time) => {return new Date(time.replace(/-/g, '/')).getTime()
}复制代码

58.compareTimeOneLessTwo

/***  比较时间 1 小于时间 2* @param {String} timeOne  时间 1* @param {String} timeTwo  时间 2*/
export const compareTimeOneLessTwo = (timeOne, timeTwo) => {// 判断 timeOne 和 timeTwo 是否return new Date(timeOne.replace(/-/g, '/')).getTime()<new Date(timeTwo.replace(/-/g, '/')).getTime()
}
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url

59.getQueryString

获取 url 后面通过?传参的参数~~~~

/***  获取 url 后面通过?传参的参数* @param {String} name*/
export function getQueryString(name) {const reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i')const url = window.location.hrefconst search = url.substring(url.lastIndexOf('?') + 1)const r = search.match(reg)if (r != null) return unescape(r[2])return null
}
复制代码

###1.邮箱

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

###2.手机号码

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

###3.电话号码

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

###4.是否url地址

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

###5.是否字符串

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

###6.是否数字

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

###7.是否boolean

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

###8.是否函数

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

###9.是否为null

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

###10.是否undefined

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

###11.是否对象

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

###12.是否数组

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

###13.是否时间

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

###14.是否正则

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

###15.是否错误对象

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

###16.是否Symbol函数

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

###17.是否Promise对象

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

###18.是否Set对象

export const isSet = (o) => {return Object.prototype.toString.call(o).slice(8, -1) === 'Set'
}
export const ua = 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 isQQBrowser = () => {return !!ua.match(/mqqbrowser|qzone|qqbrowser|qbwebviewtype/i)
}

###22.是否是爬虫

export const isSpider = () => {return /adsbot|googlebot|bingbot|msnbot|yandexbot|baidubot|robot|careerbot|seznambot|bot|baiduspider|jikespider|symantecspider|scannerlwebcrawler|crawler|360spider|sosospider|sogou web sprider|sogou orion spider/.test(ua)
}

###23.是否ios

export const isIos = () => {var u = navigator.userAgent;if (u.indexOf('Android') > -1 || u.indexOf('Linux') > -1) {  //安卓手机return false} else if (u.indexOf('iPhone') > -1) {//苹果手机return true} else if (u.indexOf('iPad') > -1) {//iPadreturn false} else if (u.indexOf('Windows Phone') > -1) {//winphone手机return false} else {return false}
}

###24.是否为PC端

export const isPC = () => {var userAgentInfo = navigator.userAgent;var Agents = ["Android", "iPhone","SymbianOS", "Windows Phone","iPad", "iPod"];var flag = true;for (var v = 0; v < Agents.length; v++) {if (userAgentInfo.indexOf(Agents[v]) > 0) {flag = false;break;}}return flag;
}

###25.去除html标签

export const removeHtmltag = (str) => {return str.replace(/<[^>]+>/g, '')
}

###26.获取url参数

export const getQueryString = (name) => {const reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i');const search = window.location.search.split('?')[1] || '';const r = search.match(reg) || [];return r[2];
}

###27.动态引入js

export const injectScript = (src) => {const s = document.createElement('script');s.type = 'text/javascript';s.async = true;s.src = src;const t = document.getElementsByTagName('script')[0];t.parentNode.insertBefore(s, t);
}

###28.根据url地址下载

export const download = (url) => {var isChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;var isSafari = navigator.userAgent.toLowerCase().indexOf('safari') > -1;if (isChrome || isSafari) {var link = document.createElement('a');link.href = url;if (link.download !== undefined) {var fileName = url.substring(url.lastIndexOf('/') + 1, url.length);link.download = fileName;}if (document.createEvent) {var e = document.createEvent('MouseEvents');e.initEvent('click', true, true);link.dispatchEvent(e);return true;}}if (url.indexOf('?') === -1) {url += '?download';}window.open(url, '_self');return true;
}

###29.el是否包含某个class

export const hasClass = (el, className) => {let reg = new RegExp('(^|\\s)' + className + '(\\s|$)')return reg.test(el.className)
}

###30.el添加某个class

export const addClass = (el, className) => {if (hasClass(el, className)) {return}let newClass = el.className.split(' ')newClass.push(className)el.className = newClass.join(' ')
}

31.el去除某个class

export const removeClass = (el, className) => {if (!hasClass(el, className)) {return}let reg = new RegExp('(^|\\s)' + className + '(\\s|$)', 'g')el.className = el.className.replace(reg, ' ')
}

###32.获取滚动的坐标

export const getScrollPosition = (el = window) => ({x: el.pageXOffset !== undefined ? el.pageXOffset : el.scrollLeft,y: el.pageYOffset !== undefined ? el.pageYOffset : el.scrollTop
});

###33.滚动到顶部

export const scrollToTop = () => {const c = document.documentElement.scrollTop || document.body.scrollTop;if (c > 0) {window.requestAnimationFrame(scrollToTop);window.scrollTo(0, c - c / 8);}
}

###34.el是否在视口范围内

export const elementIsVisibleInViewport = (el, partiallyVisible = false) => {const { top, left, bottom, right } = el.getBoundingClientRect();const { innerHeight, innerWidth } = window;return partiallyVisible? ((top > 0 && top < innerHeight) || (bottom > 0 && bottom < innerHeight)) &&((left > 0 && left < innerWidth) || (right > 0 && right < innerWidth)): top >= 0 && left >= 0 && bottom <= innerHeight && right <= innerWidth;
}

###35.洗牌算法随机

export const shuffle = (arr) => {var result = [],random;while (arr.length > 0) {random = Math.floor(Math.random() * arr.length);result.push(arr[random])arr.splice(random, 1)}return result;
}

###36.拦截粘贴板

export const copyTextToClipboard = (value) => {var textArea = document.createElement("textarea");textArea.style.background = 'transparent';textArea.value = value;document.body.appendChild(textArea);textArea.select();try {var successful = document.execCommand('copy');} catch (err) {console.log('Oops, unable to copy');}document.body.removeChild(textArea);
}

###37.判断类型集合

export const checkStr = (str, type) => {switch (type) {case 'phone':   //手机号码return /^1[3|4|5|6|7|8|9][0-9]{9}$/.test(str);case 'tel':     //座机return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str);case 'card':    //身份证return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(str);case 'pwd':     //密码以字母开头，长度在6~18之间，只能包含字母、数字和下划线return /^[a-zA-Z]\w{5,17}$/.test(str)case 'postal':  //邮政编码return /[1-9]\d{5}(?!\d)/.test(str);case 'QQ':      //QQ号return /^[1-9][0-9]{4,9}$/.test(str);case 'email':   //邮箱return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str);case 'money':   //金额(小数点2位)return /^\d*(?:\.\d{0,2})?$/.test(str);case 'URL':     //网址return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)case 'IP':      //IPreturn /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);case 'date':    //日期时间return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.test(str) || /^(\d{4})\-(\d{2})\-(\d{2})$/.test(str)case 'number':  //数字return /^[0-9]$/.test(str);case 'english': //英文return /^[a-zA-Z]+$/.test(str);case 'chinese': //中文return /^[\\u4E00-\\u9FA5]+$/.test(str);case 'lower':   //小写return /^[a-z]+$/.test(str);case 'upper':   //大写return /^[A-Z]+$/.test(str);case 'HTML':    //HTML标记return /<("[^"]*"|'[^']*'|[^'">])*>/.test(str);default:return true;}
}

###38.严格的身份证校验

export const isCardID = (sId) => {if (!/(^\d{15}$)|(^\d{17}(\d|X|x)$)/.test(sId)) {console.log('你输入的身份证长度或格式错误')return false}//身份证城市var aCity = { 11: "北京", 12: "天津", 13: "河北", 14: "山西", 15: "内蒙古", 21: "辽宁", 22: "吉林", 23: "黑龙江", 31: "上海", 32: "江苏", 33: "浙江", 34: "安徽", 35: "福建", 36: "江西", 37: "山东", 41: "河南", 42: "湖北", 43: "湖南", 44: "广东", 45: "广西", 46: "海南", 50: "重庆", 51: "四川", 52: "贵州", 53: "云南", 54: "西藏", 61: "陕西", 62: "甘肃", 63: "青海", 64: "宁夏", 65: "新疆", 71: "台湾", 81: "香港", 82: "澳门", 91: "国外" };if (!aCity[parseInt(sId.substr(0, 2))]) {console.log('你的身份证地区非法')return false}// 出生日期验证var sBirthday = (sId.substr(6, 4) + "-" + Number(sId.substr(10, 2)) + "-" + Number(sId.substr(12, 2))).replace(/-/g, "/"),d = new Date(sBirthday)if (sBirthday != (d.getFullYear() + "/" + (d.getMonth() + 1) + "/" + d.getDate())) {console.log('身份证上的出生日期非法')return false}// 身份证号码校验var sum = 0,weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2],codes = "10X98765432"for (var i = 0; i < sId.length - 1; i++) {sum += sId[i] * weights[i];}var last = codes[sum % 11]; //计算出来的最后一位身份证号码if (sId[sId.length - 1] != last) {console.log('你输入的身份证号非法')return false}return true
}

###39.随机数范围

export const random = (min, max) => {if (arguments.length === 2) {return Math.floor(min + Math.random() * ((max + 1) - min))} else {return null;}
}

###40.将阿拉伯数字翻译成中文的大写数字

export const numberToChinese = (num) => {var AA = new Array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十");var BB = new Array("", "十", "百", "仟", "萬", "億", "点", "");var a = ("" + num).replace(/(^0*)/g, "").split("."),k = 0,re = "";for (var i = a[0].length - 1; i >= 0; i--) {switch (k) {case 0:re = BB[7] + re;break;case 4:if (!new RegExp("0{4}//d{" + (a[0].length - i - 1) + "}$").test(a[0]))re = BB[4] + re;break;case 8:re = BB[5] + re;BB[7] = BB[5];k = 0;break;}if (k % 4 == 2 && a[0].charAt(i + 2) != 0 && a[0].charAt(i + 1) == 0)re = AA[0] + re;if (a[0].charAt(i) != 0)re = AA[a[0].charAt(i)] + BB[k % 4] + re;k++;}if (a.length > 1) // 加上小数部分(如果有小数部分){re += BB[6];for (var i = 0; i < a[1].length; i++)re += AA[a[1].charAt(i)];}if (re == '一十')re = "十";if (re.match(/^一/) && re.length == 3)re = re.replace("一", "");return re;
}

###41.将数字转换为大写金额

export const changeToChinese = (Num) => {//判断如果传递进来的不是字符的话转换为字符if (typeof Num == "number") {Num = new String(Num);};Num = Num.replace(/,/g, "") //替换tomoney()中的“,”Num = Num.replace(/ /g, "") //替换tomoney()中的空格Num = Num.replace(/￥/g, "") //替换掉可能出现的￥字符if (isNaN(Num)) { //验证输入的字符是否为数字//alert("请检查小写金额是否正确");return "";};//字符处理完毕后开始转换，采用前后两部分分别转换var part = String(Num).split(".");var newchar = "";//小数点前进行转化for (var i = part[0].length - 1; i >= 0; i--) {if (part[0].length > 10) {return "";//若数量超过拾亿单位，提示}var tmpnewchar = ""var perchar = part[0].charAt(i);switch (perchar) {case "0":tmpnewchar = "零" + tmpnewchar;break;case "1":tmpnewchar = "壹" + tmpnewchar;break;case "2":tmpnewchar = "贰" + tmpnewchar;break;case "3":tmpnewchar = "叁" + tmpnewchar;break;case "4":tmpnewchar = "肆" + tmpnewchar;break;case "5":tmpnewchar = "伍" + tmpnewchar;break;case "6":tmpnewchar = "陆" + tmpnewchar;break;case "7":tmpnewchar = "柒" + tmpnewchar;break;case "8":tmpnewchar = "捌" + tmpnewchar;break;case "9":tmpnewchar = "玖" + tmpnewchar;break;}switch (part[0].length - i - 1) {case 0:tmpnewchar = tmpnewchar + "元";break;case 1:if (perchar != 0) tmpnewchar = tmpnewchar + "拾";break;case 2:if (perchar != 0) tmpnewchar = tmpnewchar + "佰";break;case 3:if (perchar != 0) tmpnewchar = tmpnewchar + "仟";break;case 4:tmpnewchar = tmpnewchar + "万";break;case 5:if (perchar != 0) tmpnewchar = tmpnewchar + "拾";break;case 6:if (perchar != 0) tmpnewchar = tmpnewchar + "佰";break;case 7:if (perchar != 0) tmpnewchar = tmpnewchar + "仟";break;case 8:tmpnewchar = tmpnewchar + "亿";break;case 9:tmpnewchar = tmpnewchar + "拾";break;}var newchar = tmpnewchar + newchar;}//小数点之后进行转化if (Num.indexOf(".") != -1) {if (part[1].length > 2) {// alert("小数点之后只能保留两位,系统将自动截断");part[1] = part[1].substr(0, 2)}for (i = 0; i < part[1].length; i++) {tmpnewchar = ""perchar = part[1].charAt(i)switch (perchar) {case "0":tmpnewchar = "零" + tmpnewchar;break;case "1":tmpnewchar = "壹" + tmpnewchar;break;case "2":tmpnewchar = "贰" + tmpnewchar;break;case "3":tmpnewchar = "叁" + tmpnewchar;break;case "4":tmpnewchar = "肆" + tmpnewchar;break;case "5":tmpnewchar = "伍" + tmpnewchar;break;case "6":tmpnewchar = "陆" + tmpnewchar;break;case "7":tmpnewchar = "柒" + tmpnewchar;break;case "8":tmpnewchar = "捌" + tmpnewchar;break;case "9":tmpnewchar = "玖" + tmpnewchar;break;}if (i == 0) tmpnewchar = tmpnewchar + "角";if (i == 1) tmpnewchar = tmpnewchar + "分";newchar = newchar + tmpnewchar;}}//替换所有无用汉字while (newchar.search("零零") != -1)newchar = newchar.replace("零零", "零");newchar = newchar.replace("零亿", "亿");newchar = newchar.replace("亿万", "亿");newchar = newchar.replace("零万", "万");newchar = newchar.replace("零元", "元");newchar = newchar.replace("零角", "");newchar = newchar.replace("零分", "");if (newchar.charAt(newchar.length - 1) == "元") {newchar = newchar + "整"}return newchar;
}

###42.判断一个元素是否在数组中

export const contains = (arr, val) => {return arr.indexOf(val) != -1 ? true : false;
}

###43.数组排序，{type} 1：从小到大 2：从大到小 3：随机

export const sort = (arr, type = 1) => {return arr.sort((a, b) => {switch (type) {case 1:return a - b;case 2:return b - a;case 3:return Math.random() - 0.5;default:return arr;}})
}

###44.去重

export const unique = (arr) => {if (Array.hasOwnProperty('from')) {return Array.from(new Set(arr));} else {var n = {}, r = [];for (var i = 0; i < arr.length; i++) {if (!n[arr[i]]) {n[arr[i]] = true;r.push(arr[i]);}}return r;}
}

###45.求两个集合的并集

export const union = (a, b) => {var newArr = a.concat(b);return this.unique(newArr);
}

###46.求两个集合的交集

export const intersect = (a, b) => {var _this = this;a = this.unique(a);return this.map(a, function (o) {return _this.contains(b, o) ? o : null;});
}

###47.删除其中一个元素

export const remove = (arr, ele) => {var index = arr.indexOf(ele);if (index > -1) {arr.splice(index, 1);}return arr;
}

###48.将类数组转换为数组

export const formArray = (ary) => {var arr = [];if (Array.isArray(ary)) {arr = ary;} else {arr = Array.prototype.slice.call(ary);};return arr;
}

###49.最大值

export const max = (arr) => {return Math.max.apply(null, arr);
}

###50.最小值

export const min = (arr) => {return Math.min.apply(null, arr);
}

###51.求和

export const sum = (arr) => {return arr.reduce((pre, cur) => {return pre + cur})
}

###52.平均值

export const average = (arr) => {return this.sum(arr) / arr.length
}

###53.去除空格,type: 1-所有空格 2-前后空格 3-前空格 4-后空格

export const trim = (str, type) => {type = type || 1switch (type) {case 1:return str.replace(/\s+/g, "");case 2:return str.replace(/(^\s*)|(\s*$)/g, "");case 3:return str.replace(/(^\s*)/g, "");case 4:return str.replace(/(\s*$)/g, "");default:return str;}
}

###54.字符转换，type: 1:首字母大写 2：首字母小写 3：大小写转换 4：全部大写 5：全部小写

export const changeCase = (str, type) => {type = type || 4switch (type) {case 1:return str.replace(/\b\w+\b/g, function (word) {return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();});case 2:return str.replace(/\b\w+\b/g, function (word) {return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();});case 3:return str.split('').map(function (word) {if (/[a-z]/.test(word)) {return word.toUpperCase();} else {return word.toLowerCase()}}).join('')case 4:return str.toUpperCase();case 5:return str.toLowerCase();default:return str;}
}

###55.检测密码强度

export const checkPwd = (str) => {var Lv = 0;if (str.length < 6) {return Lv}if (/[0-9]/.test(str)) {Lv++}if (/[a-z]/.test(str)) {Lv++}if (/[A-Z]/.test(str)) {Lv++}if (/[\.|-|_]/.test(str)) {Lv++}return Lv;
}

###56.函数节流器

export const debouncer = (fn, time, interval = 200) => {if (time - (window.debounceTimestamp || 0) > interval) {fn && fn();window.debounceTimestamp = time;}
}

###57.在字符串中插入新字符串

export const insertStr = (soure, index, newStr) => {var str = soure.slice(0, index) + newStr + soure.slice(index);return str;
}

###58.判断两个对象是否键值相同

export const isObjectEqual = (a, b) => {var aProps = Object.getOwnPropertyNames(a);var bProps = Object.getOwnPropertyNames(b);if (aProps.length !== bProps.length) {return false;}for (var i = 0; i < aProps.length; i++) {var propName = aProps[i];if (a[propName] !== b[propName]) {return false;}}return true;
}

###59.16进制颜色转RGBRGBA字符串

export const colorToRGB = (val, opa) => {var pattern = /^(#?)[a-fA-F0-9]{6}$/; //16进制颜色值校验规则var isOpa = typeof opa == 'number'; //判断是否有设置不透明度if (!pattern.test(val)) { //如果值不符合规则返回空字符return '';}var v = val.replace(/#/, ''); //如果有#号先去除#号var rgbArr = [];var rgbStr = '';for (var i = 0; i < 3; i++) {var item = v.substring(i * 2, i * 2 + 2);var num = parseInt(item, 16);rgbArr.push(num);}rgbStr = rgbArr.join();rgbStr = 'rgb' + (isOpa ? 'a' : '') + '(' + rgbStr + (isOpa ? ',' + opa : '') + ')';return rgbStr;
}

###60.追加url参数

export const appendQuery = (url, key, value) => {var options = key;if (typeof options == 'string') {options = {};options[key] = value;}options = $.param(options);if (url.includes('?')) {url += '&' + options} else {url += '?' + options}return url;
}

总结

码字不易,持续更新中,欢迎 start!

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前端常用的 59 个工具类【持续更新】

前言

使用

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