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const getType = (value) => {  const match = Object.prototype.toString.call(value).match(/ (\w+)]/)  return match[1].toLocaleLowerCase()}
getType() // undefinedgetType({}}) // objectgetType([]) // arraygetType(1) // numbergetType('fatfish') // stringgetType(true) // booleangetType(/fatfish/) // regexp

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const deepCopy = (obj, hash = new WeakMap()) => {  if (obj instanceof Date) {    return new Date(obj);  }  if (obj instanceof RegExp) {    return new RegExp(obj);  }  if (hash.has(obj)) {    return hash.get(obj);  }  let allDesc = Object.getOwnPropertyDescriptors(obj);  let cloneObj = Object.create(Object.getPrototypeOf(obj), allDesc);  hash.set(obj, cloneObj);  for (let key of Reflect.ownKeys(obj)) {    if (obj[key] && typeof obj[key] === "object") {      cloneObj[key] = deepCopy(obj[key], hash);    } else {      cloneObj[key] = obj[key];    }  }  return cloneObj;};

const isMobile = () => {  return !!navigator.userAgent.match(    /(iPhone|iPod|Android|ios|iOS|iPad|Backerry|WebOS|Symbian|Windows Phone|Phone)/i  );};

const isAndroid = () => {  return /android/i.test(navigator.userAgent.toLowerCase());};
const isIOS = () => {  let reg = /iPhone|iPad|iPod|iOS|Macintosh/i;  return reg.test(navigator.userAgent.toLowerCase());};

const getExplorerInfo = () => {  let t = navigator.userAgent.toLowerCase();  return 0 <= t.indexOf("msie")    ? {        //ie < 11        type: "IE",        version: Number(t.match(/msie ([\d]+)/)[1]),      }    : !!t.match(/trident\/.+?rv:(([\d.]+))/)    ? {        // ie 11        type: "IE",        version: 11,      }    : 0 <= t.indexOf("edge")    ? {        type: "Edge",        version: Number(t.match(/edge\/([\d]+)/)[1]),      }    : 0 <= t.indexOf("firefox")    ? {        type: "Firefox",        version: Number(t.match(/firefox\/([\d]+)/)[1]),      }    : 0 <= t.indexOf("chrome")    ? {        type: "Chrome",        version: Number(t.match(/chrome\/([\d]+)/)[1]),      }    : 0 <= t.indexOf("opera")    ? {        type: "Opera",        version: Number(t.match(/opera.([\d]+)/)[1]),      }    : 0 <= t.indexOf("Safari")    ? {        type: "Safari",        version: Number(t.match(/version\/([\d]+)/)[1]),      }    : {        type: t,        version: -1,      };};

const setCookie = (key, value, expire) => {  const d = new Date();  d.setDate(d.getDate() + expire);  document.cookie = `${key}=${value};expires=${d.toUTCString()}`;};

const getCookie = (key) => {  const cookieStr = unescape(document.cookie);  const arr = cookieStr.split("; ");  let cookieValue = "";  for (let i = 0; i < arr.length; i++) {    const temp = arr[i].split("=");    if (temp[0] === key) {      cookieValue = temp[1];      break;    }  }  return cookieValue;};

const delCookie = (key) => {  document.cookie = `${encodeURIComponent(key)}=;expires=${new Date()}`;};

const randomString = (len) => {  let chars = "ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz123456789";  let strLen = chars.length;  let randomStr = "";  for (let i = 0; i < len; i++) {    randomStr += chars.charAt(Math.floor(Math.random() * strLen));  }  return randomStr;};
randomString(10) // pfkMfjEJ6xrandomString(20) // ce6tEx1km4idRNMtym2S

const fistLetterUpper = (str) => {  return str.charAt(0).toUpperCase() + str.slice(1);};
fistLetterUpper('fatfish') // Fatfish

const randomNum = (min, max) => Math.floor(Math.random() * (max - min + 1)) + min;
randomNum(1, 10) // 6randomNum(10, 20) // 11

const shuffleArray = (array) => {  return array.sort(() => 0.5 - Math.random())}
let arr = [ 1, -1, 10, 5 ]
shuffleArray(arr) // [5, -1, 10, 1]shuffleArray(arr) // [1, 10, -1, 5]

const getRandomValue = array => array[Math.floor(Math.random() * array.length)]; const prizes = [  '$100', '??', '??' ]
getRandomValue(prizes) // ??getRandomValue(prizes) // ??getRandomValue(prizes) // ??

const formatMoney = (money) => {  return money.replace(new RegExp(`(?!^)(?=(\\d{3})+${money.includes('.') ? '\\.' : '$'})`, 'g'), ',')  }
formatMoney('123456789') // '123,456,789'formatMoney('123456789.123') // '123,456,789.123'formatMoney('123') // '123'

const formatMoney = (money) => {  return money.toLocaleString()}
formatMoney(123456789) // '123,456,789'formatMoney(123456789.123) // '123,456,789.123'formatMoney(123) // '123'