JavaScript工具函数代码如下（前端代码，使用了ES6的语法）

// 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})?$/.test(str);
        case 'URL': //网 址
            return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)
        case 'IP': //I P
            return /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);
        case 'date': //日 期 时 间
            return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.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;
    }
}

// 格式化时间-小于10补0

function formatDigit(n) {
    return n.toString().replace(/^(\d)$/, '0$1');
}

// 格式化时间，通用

export const formatDate = (timestamp, formats) => {
    /* formats格式包括:
        1. Y-M-D
        2. Y-M-D h:m:s
        3. Y年M月D日
        4. Y年M月D日 h时m分
        5. Y年M月D日 h时m分s秒
        
    */
    formats = formats || 'Y-M-D';
    var myDate = undefined;
    if (timestamp) {
        if (typeof(timestamp) != 'string') {
            myDate = timestamp;
        } else {
            myDate = new Date(timestamp);
        }
    } else {
        myDate = new Date();
    }

    var year = myDate.getFullYear();
    var month = formatDigit(myDate.getMonth() + 1);
    var day = formatDigit(myDate.getDate());
    var hour = formatDigit(myDate.getHours());
    var minute = formatDigit(myDate.getMinutes());
    var second = formatDigit(myDate.getSeconds());
    return formats.replace(/Y|M|D|h|m|s/g, (matches) => {
        return {
            Y: year,
            M: month,
            D: day,
            h: hour,
            m: minute,
            s: second
        } [matches];
    });
}

// 验证邮箱

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

// 验证手机号码

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

// 验证电话号码

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

// 验证是否url地址

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

// 验证是否字符串

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

// 验证是否是否数字

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

// 验证是否是Boolean

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

// 验证是否是函数

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

//是否为null

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

//是否undefined

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

//是否对象

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

//是否数组

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

// 是否时间对象

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

//是否正则

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

// 是否错误对象

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

//是否Symbol函数

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

// 是否Promise对象

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

// 是否Set对象

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

//判断数据是不是引用类型的数据

export function isObject(value) {
    let type = typeof value;
    return value != null && (type == 'object' || type == 'function');
}

// 字符串超出多少字显示省略号

export function strOut(str, len=0,type) {
    type=type||'star';
    var restr = '';
    if (str) {
        if (str.length >= len) {
            restr = str.substring(0, len) + (type=='star'?'***':'...');
        } else {
            restr = str;
        }
    }
    return restr;
}

//浮点数加法运算--解决精度丢失（传入Number，返回Number）

export function FloatAdd(arg1, arg2) {
    var r1, r2, m;
    try {
        r1 = arg1.toString().split('.')[1].length;
    } catch (e) {
        r1 = 0;
    }
    try {
        r2 = arg2.toString().split('.')[1].length;
    } catch (e) {
        r2 = 0;
    }
    m = Math.pow(10, Math.max(r1, r2));
    return (arg1 * m + arg2 * m) / m;
}

//浮点数乘法运算--解决精度丢失（传入Number，返回Number）

export function FloatMul(arg1, arg2) {
    var m = 0,
        s1 = arg1.toString(),
        s2 = arg2.toString();
    try {
        m += s1.split('.')[1].length;
    } catch (e) {}
    try {
        m += s2.split('.')[1].length;
    } catch (e) {}
    return (Number(s1.replace('.', '')) * Number(s2.replace('.', ''))) / Math.pow(10, m);
}

//随机数时间戳 （返回数字符串）

export function uniqueId() {
    var a = Math.random,
        b = parseInt;
    return Number(new Date()).toString() + b(10 * a()) + b(10 * a()) + b(10 * a());
}

// 数组随机洗牌算法

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;
}

// 严格的身份证号码校验

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
}

// 随机整数范围

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

// 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;
}

// 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;
}

// 判断一个元素是否在数组中

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

// 数组去重

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;
    }
}

// 数组删除其中一个元素

export const arrRemove = (arr, ele) => {
    var index = arr.indexOf(ele);
    if (index > -1) {
        arr.splice(index, 1);
    }
    return arr;
}

// 求数组中的最大值

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

// 求数组中的最小值

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

// 数组中的值求和

export const arrSum = (arr) => {
    return arr.reduce((pre, cur) => {
        return pre + cur
    })
}

// 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 strTrim = (str, type) => {
    type = type || 2
    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;
    }
}

// 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, (word) => {
                return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();

            });
        case 2:
            return str.replace(/\b\w+\b/g, (word) => {
                return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();
            });
        case 3:
            return str.split('').map((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;
    }
}

// 检测密码强度 等级1-5

export const checkPwd = (str) => {
    var Lv = 1;
    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;
}

// 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;
}

// 16进制颜色值转rgba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;
}