【总结】前端常用60余种校验类工具方法

曾经终败给现在 2022-09-09 12:43 154阅读 0赞

![d55b25a72bf92d293c859803164fd8ce.png][]

工欲善其事必先利其器，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。

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 isDeviceMobile = () => {    return /android|webos|iphone|ipod|balckberry/i.test(ua)}

21.是否是QQ浏览器

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.劫持粘贴板

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})?$/.test(str);        case 'URL':     //网址            return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)        case 'IP':      //IP            return /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);        case 'date':    //日期时间            return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.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;}

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