常用表单校验（手机号 固话 身份证 真是姓名 邮箱 银行卡）

1.js校验手机号

// 手机号码正则表达式var mobile = /^(13[0-9]|14[579]|15[0-3,5-9]|16[6]|17[0135678]|18[0-9]|19[89])\d{8}$/;//19位全国正式唯一学籍号正则表达式var roll_code = /^[A-Z]\d{6}(18|19|20)?\d{2}(0[1-9]|1[012])(0[1-9]|[12]\d|3[01])\d{3}(\d|[xX])$/;//18位身份证正则表达式var identity_card = /^\d{6}(18|19|20)?\d{2}(0[1-9]|1[012])(0[1-9]|[12]\d|3[01])\d{3}(\d|[xX])$/;//保留一位小数的正数正则表达式var reg = /(^[1-9](\d+)?(\.\d{1,1})?$)|(^(0){1}$)|(^\d\.\d{1,1}?$)/;//onkeydown事件禁用文本框粘帖function fncKeyStop(evt){if(!window.event){var keycode = evt.keyCode;var key = String.fromCharCode(keycode).toLowerCase();if(evt.ctrlKey && key == "v"){evt.preventDefault();evt.stopPropagation();}}}

2.js验证身份证号

js验证身份证号，中国的身份证号，一代身份证号是15位的数字，二代身份证都是18位的，最后一位校验位除了可能是数字还可能是'X'或'x'，所以有四种可能性：a.15位数字 b.18位数字 c.17位数字，第十八位是'X' d.17位数字，第十八位是'x'

// 身份证正则校验

var regIdNo = /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/; if(!regIdNo.test(idNo)){ alert('身份证号填写有误'); return false; }

//身份证号合法性验证 //支持15位和18位身份证号//支持地址编码、出生日期、校验位验证const IdentityCodeValid = code => {var city = {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 "};var tip = "";var pass = true;//验证身份证格式（6个地区编码，8位出生日期，3位顺序号，1位校验位）if (!code || !/^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$|^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}([0-9]|X)$/.test(code)) {tip = "身份证号格式错误";pass = false;} else if (!city[code.substr(0, 2)]) {tip = "地址编码错误";pass = false;} else {//18位身份证需要验证最后一位校验位if (code.length == 18) {code = code.split('');//∑(ai×Wi)(mod 11)//加权因子var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];//校验位var parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];var sum = 0;var ai = 0;var wi = 0;for (var i = 0; i < 17; i++) {ai = code[i];wi = factor[i];sum += ai * wi;}var last = parity[sum % 11];if (parity[sum % 11] != code[17]) {tip = "校验位错误";pass = false;}}}return pass;}

3.js验证真实姓名

js验证真实姓名，是用的unicode字符的来进行匹配，而中国人的姓名长度一般都是2-4，所以重复匹配{2,4}次

var regName =/^[\u4e00-\u9fa5]{2,4}$/; if(!regName.test(name)){ alert('真实姓名填写有误'); return false; }

4.正则校验只能输入汉字数字英文下划线

let REG = /^[\u4e00-\u9fa5\w]{1,6}$/;console.log(REG.test('你的用户名')); // true 或者 false

5.校验邮箱正则

/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/

6.固话校验

/^((0\d{2,3}-\d{7,8})|(1[3584]\d{9}))$/

7.银行卡校验

/***银行卡号Luhn校验算法*luhn校验规则：16位银行卡号（19位通用）: *1.将未带校验位的 15（或18）位卡号从右依次编号 1 到 15（18），位于奇数位号上的数字乘以 2。*2.将奇位乘积的个十位全部相加，再加上所有偶数位上的数字。*3.将加法和加上校验位能被 10 整除。*4.bankno为银行卡号**/const luhnCheck = bankno => {let lastNum = bankno.substr(bankno.length - 1, 1); //取出最后一位（与luhn进行比较）let first15Num = bankno.substr(0, bankno.length - 1); //前15或18位let newArr = new Array();for (let i = first15Num.length - 1; i > -1; i--) { //前15或18位倒序存进数组newArr.push(first15Num.substr(i, 1));}let arrJiShu = new Array(); //奇数位*2的积 <9let arrJiShu2 = new Array(); //奇数位*2的积 >9let arrOuShu = new Array(); //偶数位数组for (let j = 0; j < newArr.length; j++) {if ((j + 1) % 2 == 1) { //奇数位if (parseInt(newArr[j]) * 2 < 9)arrJiShu.push(parseInt(newArr[j]) * 2);elsearrJiShu2.push(parseInt(newArr[j]) * 2);} else //偶数位arrOuShu.push(newArr[j]);}let jishu_child1 = new Array(); //奇数位*2 >9 的分割之后的数组个位数let jishu_child2 = new Array(); //奇数位*2 >9 的分割之后的数组十位数for (let h = 0; h < arrJiShu2.length; h++) {jishu_child1.push(parseInt(arrJiShu2[h]) % 10);jishu_child2.push(parseInt(arrJiShu2[h]) / 10);}let sumJiShu = 0; //奇数位*2 < 9 的数组之和let sumOuShu = 0; //偶数位数组之和let sumJiShuChild1 = 0; //奇数位*2 >9 的分割之后的数组个位数之和let sumJiShuChild2 = 0; //奇数位*2 >9 的分割之后的数组十位数之和let sumTotal = 0;for (let m = 0; m < arrJiShu.length; m++) {sumJiShu = sumJiShu + parseInt(arrJiShu[m]);}for (let n = 0; n < arrOuShu.length; n++) {sumOuShu = sumOuShu + parseInt(arrOuShu[n]);}for (let p = 0; p < jishu_child1.length; p++) {sumJiShuChild1 = sumJiShuChild1 + parseInt(jishu_child1[p]);sumJiShuChild2 = sumJiShuChild2 + parseInt(jishu_child2[p]);}//计算总和sumTotal = parseInt(sumJiShu) + parseInt(sumOuShu) + parseInt(sumJiShuChild1) + parseInt(sumJiShuChild2);//计算luhn值let k = parseInt(sumTotal) % 10 == 0 ? 10 : parseInt(sumTotal) % 10;let luhn = 10 - k;if (lastNum == luhn) {console.log("验证通过");return true;} else {console.log("银行卡号必须符合luhn校验");return false;}}//检查银行卡号const CheckBankNo = _bankno => {let bankno = _bankno.replace(/\s/g, '');if (bankno == "") {console.log("请填写银行卡号");return false;}if (bankno.length < 16 || bankno.length > 19) {console.log("银行卡号长度必须在16到19之间");return false;}let num = /^\d*$/; //全数字if (!num.exec(bankno)) {console.log("银行卡号必须全为数字");return false;}//开头6位let strBin = "10,18,30,35,37,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,58,60,62,65,68,69,84,87,88,94,95,98,99";if (strBin.indexOf(bankno.substring(0, 2)) == -1) {console.log("银行卡号开头6位不符合规范");return false;}//Luhn校验if (!luhnCheck(bankno)) {return false;}return true;}

8.判断输入内容是否包含表情

// 判断是否包含表情const isEmojiCharacter = (substring) => {for (var i = 0; i < substring.length; i++) {var hs = substring.charCodeAt(i);if (0xd800 <= hs && hs <= 0xdbff) {if (substring.length > 1) {var ls = substring.charCodeAt(i + 1);var uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;if (0x1d000 <= uc && uc <= 0x1f77f) {return true;}}} else if (substring.length > 1) {var ls = substring.charCodeAt(i + 1);if (ls == 0x20e3) {return true;}} else {if (0x2100 <= hs && hs <= 0x27ff) {return true;} else if (0x2B05 <= hs && hs <= 0x2b07) {return true;} else if (0x2934 <= hs && hs <= 0x2935) {return true;} else if (0x3297 <= hs && hs <= 0x3299) {return true;} else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 ||hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b ||hs == 0x2b50) {return true;}}}}