1.邮箱

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

2.手机号码

  1. export const isMobile = (s) => {
  2.     return /^1[0-9]{10}$/.test(s)
  3. }

3.电话号码

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

4.是否url地址

  1. export const isURL = (s) => {
  2.     return /^http[s]?:\/\/.*/.test(s)
  3. }

5.是否字符串

  1. export const isString = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'String'
  3. }

6.是否数字

  1. export const isNumber = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Number'
  3. }

7.是否boolean

  1. export const isBoolean = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Boolean'
  3. }

8.是否函数

  1. export const isFunction = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Function'
  3. }

9.是否为null

  1. export const isNull = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Null'
  3. }

10.是否undefined

  1. export const isUndefined = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Undefined'
  3. }

11.是否对象

  1. export const isObj = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Object'
  3. }

12.是否数组

  1. export const isArray = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Array'
  3. }

13.是否时间

  1. export const isDate = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Date'
  3. }

14.是否正则

  1. export const isRegExp = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'RegExp'
  3. }

15.是否错误对象

  1. export const isError = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Error'
  3. }

16.是否Symbol函数

  1. export const isSymbol = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Symbol'
  3. }

17.是否Promise对象

  1. export const isPromise = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Promise'
  3. }

18.是否Set对象

  1. export const isSet = (o) => {
  2.     return Object.prototype.toString.call(o).slice(8, -1) === 'Set'
  3. }
  1. export const ua = navigator.userAgent.toLowerCase();

19.是否是微信浏览器

  1. export const isWeiXin = () => {
  2.     return ua.match(/microMessenger/i) == 'micromessenger'
  3. }

20.是否是移动端

  1. export const isDeviceMobile = () => {
  2.     return /android|webos|iphone|ipod|balckberry/i.test(ua)
  3. }

21.是否是QQ浏览器

  1. export const isQQBrowser = () => {
  2.     return !!ua.match(/mqqbrowser|qzone|qqbrowser|qbwebviewtype/i)
  3. }

22.是否是爬虫

  1. export const isSpider = () => {
  2.     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)
  3. }

23.是否ios

  1. export const isIos = () => {
  2.     var u = navigator.userAgent;
  3.     if (u.indexOf('Android') > -1 || u.indexOf('Linux') > -1) {  //安卓手机
  4.         return false
  5.     } else if (u.indexOf('iPhone') > -1) {//苹果手机
  6.         return true
  7.     } else if (u.indexOf('iPad') > -1) {//iPad
  8.         return false
  9.     } else if (u.indexOf('Windows Phone') > -1) {//winphone手机
  10.         return false
  11.     } else {
  12.         return false
  13.     }
  14. }

24.是否为PC端

  1. export const isPC = () => {
  2.     var userAgentInfo = navigator.userAgent;
  3.     var Agents = ["Android", "iPhone",
  4.         "SymbianOS", "Windows Phone",
  5.         "iPad", "iPod"];
  6.     var flag = true;
  7.     for (var v = 0; v < Agents.length; v++) {
  8.         if (userAgentInfo.indexOf(Agents[v]) > 0) {
  9.             flag = false;
  10.             break;
  11.         }
  12.     }
  13.     return flag;
  14. }

25.去除html标签

  1. export const removeHtmltag = (str) => {
  2.     return str.replace(/<[^>]+>/g, '')
  3. }

26.获取url参数

  1. export const getQueryString = (name) => {
  2.     const reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i');
  3.     const search = window.location.search.split('?')[1] || '';
  4.     const r = search.match(reg) || [];
  5.     return r[2];
  6. }

27.动态引入js

  1. export const injectScript = (src) => {
  2.     const s = document.createElement('script');
  3.     s.type = 'text/javascript';
  4.     s.async = true;
  5.     s.src = src;
  6.     const t = document.getElementsByTagName('script')[0];
  7.     t.parentNode.insertBefore(s, t);
  8. }

28.根据url地址下载

  1. export const download = (url) => {
  2.     var isChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
  3.     var isSafari = navigator.userAgent.toLowerCase().indexOf('safari') > -1;
  4.     if (isChrome || isSafari) {
  5.         var link = document.createElement('a');
  6.         link.href = url;
  7.         if (link.download !== undefined) {
  8.             var fileName = url.substring(url.lastIndexOf('/') + 1, url.length);
  9.             link.download = fileName;
  10.         }
  11.         if (document.createEvent) {
  12.             var e = document.createEvent('MouseEvents');
  13.             e.initEvent('click', true, true);
  14.             link.dispatchEvent(e);
  15.             return true;
  16.         }
  17.     }
  18.     if (url.indexOf('?') === -1) {
  19.         url += '?download';
  20.     }
  21.     window.open(url, '_self');
  22.     return true;
  23. }

29.el是否包含某个class

  1. export const hasClass = (el, className) => {
  2.     let reg = new RegExp('(^|\\s)' + className + '(\\s|$)')
  3.     return reg.test(el.className)
  4. }

30.el添加某个class

  1. export const addClass = (el, className) => {
  2.     if (hasClass(el, className)) {
  3.         return
  4.     }
  5.     let newClass = el.className.split(' ')
  6.     newClass.push(className)
  7.     el.className = newClass.join(' ')
  8. }

31.el去除某个class

  1. export const removeClass = (el, className) => {
  2.     if (!hasClass(el, className)) {
  3.         return
  4.     }
  5.     let reg = new RegExp('(^|\\s)' + className + '(\\s|$)', 'g')
  6.     el.className = el.className.replace(reg, ' ')
  7. }

32.获取滚动的坐标

  1. export const getScrollPosition = (el = window) => ({
  2.     x: el.pageXOffset !== undefined ? el.pageXOffset : el.scrollLeft,
  3.     y: el.pageYOffset !== undefined ? el.pageYOffset : el.scrollTop
  4. });

33.滚动到顶部

  1. export const scrollToTop = () => {
  2.     const c = document.documentElement.scrollTop || document.body.scrollTop;
  3.     if (c > 0) {
  4.         window.requestAnimationFrame(scrollToTop);
  5.         window.scrollTo(0, c - c / 8);
  6.     }
  7. }

34.el是否在视口范围内

  1. export const elementIsVisibleInViewport = (el, partiallyVisible = false) => {
  2.     const { top, left, bottom, right } = el.getBoundingClientRect();
  3.     const { innerHeight, innerWidth } = window;
  4.     return partiallyVisible
  5.         ? ((top > 0 && top < innerHeight) || (bottom > 0 && bottom < innerHeight)) &&
  6.         ((left > 0 && left < innerWidth) || (right > 0 && right < innerWidth))
  7.         : top >= 0 && left >= 0 && bottom <= innerHeight && right <= innerWidth;
  8. }

35.洗牌算法随机

  1. export const shuffle = (arr) => {
  2.     var result = [],
  3.         random;
  4.     while (arr.length > 0) {
  5.         random = Math.floor(Math.random() * arr.length);
  6.         result.push(arr[random])
  7.         arr.splice(random, 1)
  8.     }
  9.     return result;
  10. }

36.劫持粘贴板

  1. export const copyTextToClipboard = (value) => {
  2.     var textArea = document.createElement("textarea");
  3.     textArea.style.background = 'transparent';
  4.     textArea.value = value;
  5.     document.body.appendChild(textArea);
  6.     textArea.select();
  7.     try {
  8.         var successful = document.execCommand('copy');
  9.     } catch (err) {
  10.         console.log('Oops, unable to copy');
  11.     }
  12.     document.body.removeChild(textArea);
  13. }

37.判断类型集合

  1. export const checkStr = (str, type) => {
  2.     switch (type) {
  3.         case 'phone':   //手机号码
  4.             return /^1[3|4|5|6|7|8|9][0-9]{9}$/.test(str);
  5.         case 'tel':     //座机
  6.             return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str);
  7.         case 'card':    //身份证
  8.             return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(str);
  9.         case 'pwd':     //密码以字母开头，长度在6~18之间，只能包含字母、数字和下划线
  10.             return /^[a-zA-Z]\w{5,17}$/.test(str)
  11.         case 'postal':  //邮政编码
  12.             return /[1-9]\d{5}(?!\d)/.test(str);
  13.         case 'QQ':      //QQ号
  14.             return /^[1-9][0-9]{4,9}$/.test(str);
  15.         case 'email':   //邮箱
  16.             return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str);
  17.         case 'money':   //金额(小数点2位)
  18.             return /^\d*(?:\.\d{0,2})?$/.test(str);
  19.         case 'URL':     //网址
  20.             return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)
  21.         case 'IP':      //IP
  22.             return /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);
  23.         case 'date':    //日期时间
  24.             return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.test(str) || /^(\d{4})\-(\d{2})\-(\d{2})$/.test(str)
  25.         case 'number':  //数字
  26.             return /^[0-9]$/.test(str);
  27.         case 'english': //英文
  28.             return /^[a-zA-Z]+$/.test(str);
  29.         case 'chinese': //中文
  30.             return /^[\\u4E00-\\u9FA5]+$/.test(str);
  31.         case 'lower':   //小写
  32.             return /^[a-z]+$/.test(str);
  33.         case 'upper':   //大写
  34.             return /^[A-Z]+$/.test(str);
  35.         case 'HTML':    //HTML标记
  36.             return /<("[^"]*"|'[^']*'|[^'">])*>/.test(str);
  37.         default:
  38.             return true;
  39.     }
  40. }

38.严格的身份证校验

  1. export const isCardID = (sId) => {
  2.     if (!/(^\d{15}$)|(^\d{17}(\d|X|x)$)/.test(sId)) {
  3.         console.log('你输入的身份证长度或格式错误')
  4.         return false
  5.     }
  6.     //身份证城市
  7.     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" };
  8.     if (!aCity[parseInt(sId.substr(0, 2))]) {
  9.         console.log('你的身份证地区非法')
  10.         return false
  11.     }
  12.     // 出生日期验证
  13.     var sBirthday = (sId.substr(6, 4) + "-" + Number(sId.substr(10, 2)) + "-" + Number(sId.substr(12, 2))).replace(/-/g, "/"),
  14.         d = new Date(sBirthday)
  15.     if (sBirthday != (d.getFullYear() + "/" + (d.getMonth() + 1) + "/" + d.getDate())) {
  16.         console.log('身份证上的出生日期非法')
  17.         return false
  18.     }
  19.     // 身份证号码校验
  20.     var sum = 0,
  21.         weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2],
  22.         codes = "10X98765432"
  23.     for (var i = 0; i < sId.length - 1; i++) {
  24.         sum += sId[i] * weights[i];
  25.     }
  26.     var last = codes[sum % 11]; //计算出来的最后一位身份证号码
  27.     if (sId[sId.length - 1] != last) {
  28.         console.log('你输入的身份证号非法')
  29.         return false
  30.     }
  31.     return true
  32. }

39.随机数范围

  1. export const random = (min, max) => {
  2.     if (arguments.length === 2) {
  3.         return Math.floor(min + Math.random() * ((max + 1) - min))
  4.     } else {
  5.         return null;
  6.     }
  7. }

40.将阿拉伯数字翻译成中文的大写数字

  1. export const numberToChinese = (num) => {
  2.     var AA = new Array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十");
  3.     var BB = new Array("", "十", "百", "仟", "萬", "億", "点", "");
  4.     var a = ("" + num).replace(/(^0*)/g, "").split("."),
  5.         k = 0,
  6.         re = "";
  7.     for (var i = a[0].length - 1; i >= 0; i--) {
  8.         switch (k) {
  9.             case 0:
  10.                 re = BB[7] + re;
  11.                 break;
  12.             case 4:
  13.                 if (!new RegExp("0{4}//d{" + (a[0].length - i - 1) + "}$")
  14.                     .test(a[0]))
  15.                     re = BB[4] + re;
  16.                 break;
  17.             case 8:
  18.                 re = BB[5] + re;
  19.                 BB[7] = BB[5];
  20.                 k = 0;
  21.                 break;
  22.         }
  23.         if (k % 4 == 2 && a[0].charAt(i + 2) != 0 && a[0].charAt(i + 1) == 0)
  24.             re = AA[0] + re;
  25.         if (a[0].charAt(i) != 0)
  26.             re = AA[a[0].charAt(i)] + BB[k % 4] + re;
  27.         k++;
  28.     }
  29.     if (a.length > 1) // 加上小数部分(如果有小数部分)
  30.     {
  31.         re += BB[6];
  32.         for (var i = 0; i < a[1].length; i++)
  33.             re += AA[a[1].charAt(i)];
  34.     }
  35.     if (re == '一十')
  36.         re = "十";
  37.     if (re.match(/^一/) && re.length == 3)
  38.         re = re.replace("一", "");
  39.     return re;
  40. }

41.将数字转换为大写金额

  1. export const changeToChinese = (Num) => {
  2.     //判断如果传递进来的不是字符的话转换为字符
  3.     if (typeof Num == "number") {
  4.         Num = new String(Num);
  5.     };
  6.     Num = Num.replace(/,/g, "") //替换tomoney()中的“,”
  7.     Num = Num.replace(/ /g, "") //替换tomoney()中的空格
  8.     Num = Num.replace(/￥/g, "") //替换掉可能出现的￥字符
  9.     if (isNaN(Num)) { //验证输入的字符是否为数字
  10.         //alert("请检查小写金额是否正确");
  11.         return "";
  12.     };
  13.     //字符处理完毕后开始转换，采用前后两部分分别转换
  14.     var part = String(Num).split(".");
  15.     var newchar = "";
  16.     //小数点前进行转化
  17.     for (var i = part[0].length - 1; i >= 0; i--) {
  18.         if (part[0].length > 10) {
  19.             return "";
  20.             //若数量超过拾亿单位，提示
  21.         }
  22.         var tmpnewchar = ""
  23.         var perchar = part[0].charAt(i);
  24.         switch (perchar) {
  25.             case "0":
  26.                 tmpnewchar = "零" + tmpnewchar;
  27.                 break;
  28.             case "1":
  29.                 tmpnewchar = "壹" + tmpnewchar;
  30.                 break;
  31.             case "2":
  32.                 tmpnewchar = "贰" + tmpnewchar;
  33.                 break;
  34.             case "3":
  35.                 tmpnewchar = "叁" + tmpnewchar;
  36.                 break;
  37.             case "4":
  38.                 tmpnewchar = "肆" + tmpnewchar;
  39.                 break;
  40.             case "5":
  41.                 tmpnewchar = "伍" + tmpnewchar;
  42.                 break;
  43.             case "6":
  44.                 tmpnewchar = "陆" + tmpnewchar;
  45.                 break;
  46.             case "7":
  47.                 tmpnewchar = "柒" + tmpnewchar;
  48.                 break;
  49.             case "8":
  50.                 tmpnewchar = "捌" + tmpnewchar;
  51.                 break;
  52.             case "9":
  53.                 tmpnewchar = "玖" + tmpnewchar;
  54.                 break;
  55.         }
  56.         switch (part[0].length - i - 1) {
  57.             case 0:
  58.                 tmpnewchar = tmpnewchar + "元";
  59.                 break;
  60.             case 1:
  61.                 if (perchar != 0) tmpnewchar = tmpnewchar + "拾";
  62.                 break;
  63.             case 2:
  64.                 if (perchar != 0) tmpnewchar = tmpnewchar + "佰";
  65.                 break;
  66.             case 3:
  67.                 if (perchar != 0) tmpnewchar = tmpnewchar + "仟";
  68.                 break;
  69.             case 4:
  70.                 tmpnewchar = tmpnewchar + "万";
  71.                 break;
  72.             case 5:
  73.                 if (perchar != 0) tmpnewchar = tmpnewchar + "拾";
  74.                 break;
  75.             case 6:
  76.                 if (perchar != 0) tmpnewchar = tmpnewchar + "佰";
  77.                 break;
  78.             case 7:
  79.                 if (perchar != 0) tmpnewchar = tmpnewchar + "仟";
  80.                 break;
  81.             case 8:
  82.                 tmpnewchar = tmpnewchar + "亿";
  83.                 break;
  84.             case 9:
  85.                 tmpnewchar = tmpnewchar + "拾";
  86.                 break;
  87.         }
  88.         var newchar = tmpnewchar + newchar;
  89.     }
  90.     //小数点之后进行转化
  91.     if (Num.indexOf(".") != -1) {
  92.         if (part[1].length > 2) {
  93.             // alert("小数点之后只能保留两位,系统将自动截断");
  94.             part[1] = part[1].substr(0, 2)
  95.         }
  96.         for (i = 0; i < part[1].length; i++) {
  97.             tmpnewchar = ""
  98.             perchar = part[1].charAt(i)
  99.             switch (perchar) {
  100.                 case "0":
  101.                     tmpnewchar = "零" + tmpnewchar;
  102.                     break;
  103.                 case "1":
  104.                     tmpnewchar = "壹" + tmpnewchar;
  105.                     break;
  106.                 case "2":
  107.                     tmpnewchar = "贰" + tmpnewchar;
  108.                     break;
  109.                 case "3":
  110.                     tmpnewchar = "叁" + tmpnewchar;
  111.                     break;
  112.                 case "4":
  113.                     tmpnewchar = "肆" + tmpnewchar;
  114.                     break;
  115.                 case "5":
  116.                     tmpnewchar = "伍" + tmpnewchar;
  117.                     break;
  118.                 case "6":
  119.                     tmpnewchar = "陆" + tmpnewchar;
  120.                     break;
  121.                 case "7":
  122.                     tmpnewchar = "柒" + tmpnewchar;
  123.                     break;
  124.                 case "8":
  125.                     tmpnewchar = "捌" + tmpnewchar;
  126.                     break;
  127.                 case "9":
  128.                     tmpnewchar = "玖" + tmpnewchar;
  129.                     break;
  130.             }
  131.             if (i == 0) tmpnewchar = tmpnewchar + "角";
  132.             if (i == 1) tmpnewchar = tmpnewchar + "分";
  133.             newchar = newchar + tmpnewchar;
  134.         }
  135.     }
  136.     //替换所有无用汉字
  137.     while (newchar.search("零零") != -1)
  138.         newchar = newchar.replace("零零", "零");
  139.     newchar = newchar.replace("零亿", "亿");
  140.     newchar = newchar.replace("亿万", "亿");
  141.     newchar = newchar.replace("零万", "万");
  142.     newchar = newchar.replace("零元", "元");
  143.     newchar = newchar.replace("零角", "");
  144.     newchar = newchar.replace("零分", "");
  145.     if (newchar.charAt(newchar.length - 1) == "元") {
  146.         newchar = newchar + "整"
  147.     }
  148.     return newchar;
  149. }

42.判断一个元素是否在数组中

  1. export const contains = (arr, val) => {
  2.     return arr.indexOf(val) != -1 ? true : false;
  3. }

43.数组排序，{type} 1：从小到大 2：从大到小 3：随机

  1. export const sort = (arr, type = 1) => {
  2.     return arr.sort((a, b) => {
  3.         switch (type) {
  4.             case 1:
  5.                 return a - b;
  6.             case 2:
  7.                 return b - a;
  8.             case 3:
  9.                 return Math.random() - 0.5;
  10.             default:
  11.                 return arr;
  12.         }
  13.     })
  14. }

44.去重

  1. export const unique = (arr) => {
  2.     if (Array.hasOwnProperty('from')) {
  3.         return Array.from(new Set(arr));
  4.     } else {
  5.         var n = {}, r = [];
  6.         for (var i = 0; i < arr.length; i++) {
  7.             if (!n[arr[i]]) {
  8.                 n[arr[i]] = true;
  9.                 r.push(arr[i]);
  10.             }
  11.         }
  12.         return r;
  13.     }
  14. }

45.求两个集合的并集

  1. export const union = (a, b) => {
  2.     var newArr = a.concat(b);
  3.     return this.unique(newArr);
  4. }

46.求两个集合的交集

  1. export const intersect = (a, b) => {
  2.     var _this = this;
  3.     a = this.unique(a);
  4.     return this.map(a, function (o) {
  5.         return _this.contains(b, o) ? o : null;
  6.     });
  7. }

47.删除其中一个元素

  1. export const remove = (arr, ele) => {
  2.     var index = arr.indexOf(ele);
  3.     if (index > -1) {
  4.         arr.splice(index, 1);
  5.     }
  6.     return arr;
  7. }

48.将类数组转换为数组

  1. export const formArray = (ary) => {
  2.     var arr = [];
  3.     if (Array.isArray(ary)) {
  4.         arr = ary;
  5.     } else {
  6.         arr = Array.prototype.slice.call(ary);
  7.     };
  8.     return arr;
  9. }

49.最大值

  1. export const max = (arr) => {
  2.     return Math.max.apply(null, arr);
  3. }

50.最小值

  1. export const min = (arr) => {
  2.     return Math.min.apply(null, arr);
  3. }

51.求和

  1. export const sum = (arr) => {
  2.     return arr.reduce((pre, cur) => {
  3.         return pre + cur
  4.     })
  5. }

52.平均值

  1. export const average = (arr) => {
  2.     return this.sum(arr) / arr.length
  3. }

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

  1. export const trim = (str, type) => {
  2.     type = type || 1
  3.     switch (type) {
  4.         case 1:
  5.             return str.replace(/\s+/g, "");
  6.         case 2:
  7.             return str.replace(/(^\s*)|(\s*$)/g, "");
  8.         case 3:
  9.             return str.replace(/(^\s*)/g, "");
  10.         case 4:
  11.             return str.replace(/(\s*$)/g, "");
  12.         default:
  13.             return str;
  14.     }
  15. }

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

  1. export const changeCase = (str, type) => {
  2.     type = type || 4
  3.     switch (type) {
  4.         case 1:
  5.             return str.replace(/\b\w+\b/g, function (word) {
  6.                 return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();
  7.             });
  8.         case 2:
  9.             return str.replace(/\b\w+\b/g, function (word) {
  10.                 return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();
  11.             });
  12.         case 3:
  13.             return str.split('').map(function (word) {
  14.                 if (/[a-z]/.test(word)) {
  15.                     return word.toUpperCase();
  16.                 } else {
  17.                     return word.toLowerCase()
  18.                 }
  19.             }).join('')
  20.         case 4:
  21.             return str.toUpperCase();
  22.         case 5:
  23.             return str.toLowerCase();
  24.         default:
  25.             return str;
  26.     }
  27. }

55.检测密码强度

  1. export const checkPwd = (str) => {
  2.     var Lv = 0;
  3.     if (str.length < 6) {
  4.         return Lv
  5.     }
  6.     if (/[0-9]/.test(str)) {
  7.         Lv++
  8.     }
  9.     if (/[a-z]/.test(str)) {
  10.         Lv++
  11.     }
  12.     if (/[A-Z]/.test(str)) {
  13.         Lv++
  14.     }
  15.     if (/[\.|-|_]/.test(str)) {
  16.         Lv++
  17.     }
  18.     return Lv;
  19. }

56.函数节流器

  1. export const debouncer = (fn, time, interval = 200) => {
  2.     if (time - (window.debounceTimestamp || 0) > interval) {
  3.         fn && fn();
  4.         window.debounceTimestamp = time;
  5.     }
  6. }

57.在字符串中插入新字符串

  1. export const insertStr = (soure, index, newStr) => {
  2.     var str = soure.slice(0, index) + newStr + soure.slice(index);
  3.     return str;
  4. }

58.判断两个对象是否键值相同

  1. export const isObjectEqual = (a, b) => {
  2.     var aProps = Object.getOwnPropertyNames(a);
  3.     var bProps = Object.getOwnPropertyNames(b);
  4.     if (aProps.length !== bProps.length) {
  5.         return false;
  6.     }
  7.     for (var i = 0; i < aProps.length; i++) {
  8.         var propName = aProps[i];
  9.         if (a[propName] !== b[propName]) {
  10.             return false;
  11.         }
  12.     }
  13.     return true;
  14. }

59.16进制颜色转RGBRGBA字符串

  1. export const colorToRGB = (val, opa) => {
  2.     var pattern = /^(#?)[a-fA-F0-9]{6}$/; //16进制颜色值校验规则
  3.     var isOpa = typeof opa == 'number'; //判断是否有设置不透明度
  4.     if (!pattern.test(val)) { //如果值不符合规则返回空字符
  5.         return '';
  6.     }
  7.     var v = val.replace(/#/, ''); //如果有#号先去除#号
  8.     var rgbArr = [];
  9.     var rgbStr = '';
  10.     for (var i = 0; i < 3; i++) {
  11.         var item = v.substring(i * 2, i * 2 + 2);
  12.         var num = parseInt(item, 16);
  13.         rgbArr.push(num);
  14.     }
  15.     rgbStr = rgbArr.join();
  16.     rgbStr = 'rgb' + (isOpa ? 'a' : '') + '(' + rgbStr + (isOpa ? ',' + opa : '') + ')';
  17.     return rgbStr;
  18. }

60.追加url参数

  1. export const appendQuery = (url, key, value) => {
  2.     var options = key;
  3.     if (typeof options == 'string') {
  4.         options = {};
  5.         options[key] = value;
  6.     }
  7.     options = $.param(options);
  8.     if (url.includes('?')) {
  9.         url += '&' + options
  10.     } else {
  11.         url += '?' + options
  12.     }
  13.     return url;
  14. }