linux怎么查看本机内存大小
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2022-11-28
前端常用的 59 个JS工具类【持续更新】
前端常用的 59 个JS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;
使用
1.方法一
npm i -S utils-lan import utils from 'utils-lan' console.log(utils.arrJudge(['1','2']))复制代码
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)))}复制代码
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))}复制代码
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))}复制代码
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] })) }}复制代码
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)}复制代码
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]}复制代码
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)}复制代码
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)}复制代码
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)}复制代码
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))}复制代码
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 })}复制代码
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)复制代码
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,}$/g.test(data)复制代码
14.checkLetter
判断是否是字母
/** * 判断是否是字母 * @param {Number} data */export const checkLetter = data => /^[a-zA-Z]+$/g.test(data)复制代码
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]+$/g.test(data)复制代码
16.checkCapitalLetter
判断是否是大写字母
/** * 判断是否是大写字母 * @param {Number} data */export const checkCapitalLetter = data => /^[A-Z]+$/g.test(data)复制代码
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]*$/g.test(data)复制代码
判断是否是字母和数字的组合
/** * 判断是否是字母或数字 * @param {Number || String} data 字符或数字 */export const checkNumAndLetter = data => /^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,15}$/g.test(data)复制代码
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]+$/g.test(data)复制代码
19.checkChineseNumberLettter
判断是否是中文，数字或字母
export const checkChineseNumberLettter = data => /^[a-zA-Z0-9\u4e00-\u9fa5]+$/g.test(data)复制代码
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.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/g if (reg.test(data)) return true}复制代码
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}$/g if (reg.test(data)) return true}复制代码
22.checkUrl
判断是否是正确的网址
/** * 判断是否是正确的网址 * @param {String} url 网址 */export const checkUrl = url => { const a = document.createElement('a') a.href = url return [ /^( a.host, a.pathname !== url, a.pathname !== `/${url}` ].find(x => !x) === undefined}复制代码
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)]};复制代码
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)]};复制代码
25.checkWeixinQqUc
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; }};复制代码
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 i var 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]}复制代码
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;}复制代码
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 null if (typeof parent !== 'object') return parent let child, proto if (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)}复制代码
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)}复制代码
31.localStorageGet
localStorage 获取
/** * localStorage 获取 * @param {String} key 属性 */export const localStorageGet = (key) => { return localStorage.getItem(key)}复制代码
32.localStorageRemove
localStorage 移除
/** * localStorage 移除 * @param {String} key 属性 */export const localStorageRemove = (key) => { localStorage.removeItem(key)}复制代码
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)}复制代码
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)}复制代码
35.sessionStorageGet
sessionStorage 获取
/** * sessionStorage 获取 * @param {String} key 属性 */export const sessionStorageGet = (key) => { return sessionStorage.getItem(key)}复制代码
36.sessionStorageRemove
sessionStorage 删除
/** * sessionStorage 删除 * @param {String} key 属性 */export const sessionStorageRemove = (key, value) => { sessionStorage.removeItem(key, value)}复制代码
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)}复制代码
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=${d.toGMTString()}`}复制代码
39.cookieGet
cookie 获取
/** * cookie 获取 * @param {String} key 属性 */export const cookieGet = (key) => { const cookieStr = unescape(document.cookie) const arr = cookieStr.split('; ') let cookieValue = '' for (var i = 0; i < arr.length; i++) { const temp = arr[i].split('=') if (temp[0] === key) { cookieValue = temp[1] break } } return cookieValue}复制代码
40.cookieRemove
cookie 删除
/** * cookie 删除 * @param {String} key 属性 */export const cookieRemove = (key) => { document.cookie = `${encodeURIComponent(key)}=;expires=${new Date()}`}复制代码
str
41.strTrimLeftOrRight
去掉字符左右空格
/** * 去掉字符左右空格 * @param {String} str 字符 */export const strTrimLeftOrRight = str => { return str.replace(/(^\s*)|(\s*$)/g, "")}复制代码
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)}复制代码
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}复制代码
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)}复制代码
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()}复制代码
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()}复制代码
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)}复制代码
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 = null return function() { if (!timer) { timer = setTimeout(() => { func.apply(this, arguments) // 或者直接 func() timer = null }, delay) } }}复制代码
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 = null return 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) }}复制代码
time
50.getYear
获取年份
/** * 获取年份 */export const getYear = () => { return new Date().getFullYear()}复制代码
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() + 1 const monRe = mon if (fillFlag) mon < 10 ? `0${mon}` : mon return monRe}复制代码
52.getDay
获取日
/** * 获取日 * @param {Boolean} fillFlag 布尔值,是否补 0 */export const getDay = (fillFlag=true) => { const day = new Date().getDate() const dayRe = day if (fillFlag) day < 10 ? `0${day}` : day return dayRe}复制代码
53.getWhatDay
星期几
/** * 获取星期几 */export const getWhatDay = () => { return new Date().getDay() ? new Date().getDay() : 7}复制代码
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()}复制代码
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() + 1 const 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] )}复制代码
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() + 1 const 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) break case 'yyyy/mm/dd': oTime = oYear + '/' + getzf(oMonth) + '/' + getzf(oDay) break } // 时分秒格式 switch (hms) { case 'hh': oTime = ' '+oTime + getzf(oHour) break case 'hh:mm': oTime = oTime + getzf(oHour) + ':' + getzf(oMin) break case 'hh:mm:ss': oTime = oTime + getzf(oHour) + ':' + getzf(oMin) + ':' + getzf(oSec) break } return oTime}复制代码
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() 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 + '=([^&]*)(&|$)', 'i') const url = window.location.href const search = url.substring(url.lastIndexOf('?') + 1) const r = search.match(reg) if (r != null) return unescape(r[2]) return null}复制代码 ###1.邮箱 export const isEmail = (s) => { return /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((.[a-zA-Z0-9_-]{2,3}){1,2})$/.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 /^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(); 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) {//iPad return 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 /( case 'IP': //IP return /((?:(?: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 || 1 switch (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 || 4 switch (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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