step by step to teach you 59 common method JS class

Refer to the original article -http: //bjbsair.com/2020-03-25/tech-info/6346/

Foreword

The distal end portion of the development of data processing may be returned to the background, or to do some processing based on the data determined; this time it is necessary to some commonly used tools encapsulate; packaged article 59 according to the usual method of some tools, of course, many less with no pre-entry, the latter continued with the new; source address, utils-lan Source address: https: //github.com/lanzhsh/react-vue-koa/tree/master/utils-lan, welcomed the star!

use

1. A method

npm i -S utils-lan    
import utils from 'utils-lan'    
console.log(utils.arrJudge(['1','2']))  
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2. Method Two git clone utils-lan Source Address: https: //github.com/lanzhsh/react-vue-koa/tree/master/utils-lan import projects down;

3. About literal class name is a named, the first method of the generic type represented hump, followed effect method; such methods is a look arrAndSet array, is treated intersection; if it is unbearable, Method 2 can be used, importing local changes to the project.

arr

1.arrAndSet

Union

/**  
 * 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

Intersection

/**  
 * 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

Difference set

/**  
 * 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

Two arrays are combined into an array object

/**  
 * 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

Summing array of objects

/**  
 * 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

Array merge

/**  
 * 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

Array sum

/**  
 * 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

An array contains a certain value

/**  
 * 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

The maximum array

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

Deduplication Array

/**  
 * 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

Sorting an array

/**  
 * 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

Determine whether the array

/**  
 * 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

Determine whether it is digital

/**  
 *  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

Determine whether the letter

/**  
 *  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

Determine whether all lowercase letters

/**  
 *  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

To determine whether capital letters

/**  
 *  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

Determining whether letters or numbers

/**  
 * 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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Determining whether a combination of letters and numbers

/**  
 * 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

Determine whether it is Chinese

/**  
 * 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

Determine whether it is Chinese, numbers or letters

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

Determine whether the e-mail address

/**  
 * 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  
}  
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21.checkTelphone

Determine whether the phone number

/**  
 * 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  
}  
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22.checkUrl

Determine whether it is the correct URL

/**  
 * 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 [  
    /^(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

Determining a terminal type, values ​​are 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

Determining whether the micro-channel, qq uc or

/**  
 * 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QQ  
    uc: u.indexOf('UCBrowser') > -1  
  }  
  return Object.keys(obj)[Object.values(obj).indexOf(true)]  
};  
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26.checkIsIphoneX

Check whether 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

Units format file

/**  
 * 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]  
}  
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obj

28.objIsEqual

Determining whether two objects are equal, the object is currently only supports simple data types Analyzing

/**  
 * 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

Object depth Cloning; 1.JSON.stringify depth clone; 2. a function can not be cloned, the RegExp other special objects; 3. abandon the object constructor, the constructor all points Object; 4. Object circular references, will an error

/**  
 * 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)  
}  
  
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storage

30.localStorageSet

localStorage currently stored value if the object is a function, RegExp and other special object storage will be ignored

/**  
 * 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 get

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

localStorage removed

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

localStorage store a certain period of time has expired

/**  
 * 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 storage

/**  
 * 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 get

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

Delete sessionStorage

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

sessionStorage store certain period of time fail

/**  
 * 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 storage

/**  
 * 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 acquisition

/**  
 * 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 deletion

/**  
 * 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

Remove about character spaces

/**  
 * 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

Determine if a certain character values

/**  
 * 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

Determine whether the characters begin with a character

/**  
 * 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

Global replace a character with another character

/**  
 * 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

All letters will be converted to uppercase

/**  
 * 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

All lower case letters converted to

/**  
 * 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

All letters will be converted to begin with an uppercase

/**  
 * 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

Throttling

/**  
 * 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)  
    }  
  }  
}  
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49.debounce

Shake

/**  
 * 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)  
  }  
}  
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time

50.getYear

Gets Year

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

Gets month

/**  
 * 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  
}  
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52.getDay

Access to day

/**  
 * 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  
}  
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53.getWhatDay

Day of the week

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

Gets the current month the number of days

/**  
 * 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

Obtain the current time 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 => {  
    item < 10 ? '0' + item : item  
  })  
  return (  
    year +  
    '-' +  
    arr[0] +  
    '-' +  
    arr[1] +  
    ' ' +  
    arr[2] +  
    ':' +  
    arr[3] +  
    ':' +  
    arr[4]  
  )  
}  
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56.timesToYyMmDd

Timestamp into a date

/**  
 * 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  
}  
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57.YyMmDdToTimes

The date will be converted into a timestamp

/**  
 * 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()  
}  
  
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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

Url get back through? Parameter passing parameters ~ ~ ~ ~

/**  
 *  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  
}  
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