15 commonly used js regular expressions
Jun 16, 2017 am 10:24 AM
這篇文章給大家收集整理了用戶名和密碼等15個常用的js正則表達式，需要的朋友參考下吧
收集整理了15個常用的javaScript正則表達式，其中包括用戶名、密碼強度、整數、數字、電子郵件地址（Email）、手機號碼、身份證號、URL地址、 IPv4地址、 十六進制顏色、 日期、 QQ號碼、 微信號、車牌號、中文正則。表單驗證處理必備。
1 用戶名正則
//用戶名正則，4到16位（字母，數字，下劃線，減號）
var uPattern = /^[a-zA-Z0-9_-]{4,16}$/;
//輸出 true
console.log(uPattern.test("iFat3"));2 密碼強度正則
//密碼強度正則，最少6位，包括至少1個大寫字母，1個小寫字母，1個數字，1個特殊字符
var pPattern = /^.*(?=.{6,})(?=.*\d)(?=.*[A-Z])(?=.*[a-z])(?=.*[!@#$%^&*? ]).*$/;
//輸出 true
console.log("=="+pPattern.test("iFat3#"));3 整數正則
//正整數正則
var posPattern = /^\d+$/;
//負整數正則
var negPattern = /^-\d+$/;
//整數正則
var intPattern = /^-?\d+$/;
//輸出 true
console.log(posPattern.test("42"));
//輸出 true
console.log(negPattern.test("-42"));
//輸出 true
console.log(intPattern.test("-42"));4 數字正則
可以是整數也可以是浮點數
//正數正則
var posPattern = /^\d*\.?\d+$/;
//負數正則
var negPattern = /^-\d*\.?\d+$/;
//數字正則
var numPattern = /^-?\d*\.?\d+$/;
console.log(posPattern.test("42.2"));
console.log(negPattern.test("-42.2"));
console.log(numPattern.test("-42.2"));5 Email正則
//Email正則
var ePattern = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
//輸出 true
console.log(ePattern.test(65974040@qq.com));6 手機號碼正則
//手機號正則
var mPattern = /^((13[0-9])|(14[5|7])|(15([0-3]|[5-9]))|(18[0,5-9]))\d{8}$/;
//輸出 true
console.log(mPattern.test("18600000000"));7 身份證號正則
//身份證號（18位）正則
var cP = /^[1-9]\d{5}(18|19|([23]\d))\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/;
//輸出 true
console.log(cP.test("11010519880605371X"));8 URL正則
//身份證號（18位）正則
var cP = /^[1-9]\d{5}(18|19|([23]\d))\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/;
//輸出 true
console.log(cP.test("11010519880605371X"));9 IPv4地址正則
//ipv4地址正則
var ipP = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
//輸出 true
console.log(ipP.test("115.28.47.26"));10 十六進制顏色正則
//RGB Hex顏色正則
var cPattern = /^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/;
//輸出 true
console.log(cPattern.test("#b8b8b8"));11 日期正則
//日期正則，簡單判定,未做月份及日期的判定
var dP1 = /^\d{4}(\-)\d{1,2}\1\d{1,2}$/;
//輸出 true
console.log(dP1.test("2017-05-11"));
//輸出 true
console.log(dP1.test("2017-15-11"));
//日期正則，復雜判定
var dP2 = /^(?:(?!0000)[0-9]{4}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-8])|(?:0[13-9]|1[0-2])-(?:29|30)|(?:0[13578]|1[02])-31)|(?:[0-9]{2}(?:0[48]|[2468][048]|[13579][26])|(?:0[48]|[2468][048]|[13579][26])00)-02-29)$/;
//輸出 true
console.log(dP2.test("2017-02-11"));
//輸出 false
console.log(dP2.test("2017-15-11"));
//輸出 false
console.log(dP2.test("2017-02-29"));12 QQ號碼正則
//QQ號正則，5至11位
var qqPattern = /^[1-9][0-9]{4,10}$/;
//輸出 true
console.log(qqPattern.test("65974040"));13 微信號正則
//微信號正則，6至20位，以字母開頭，字母，數字，減號，下劃線
var wxPattern = /^[a-zA-Z]([-_a-zA-Z0-9]{5,19})+$/;
//輸出 true
console.log(wxPattern.test("RuilongMao"));14 車牌號正則
//車牌號正則
var cPattern = /^[京津滬渝冀豫云遼黑湘皖魯新蘇浙贛鄂桂甘晉蒙陜吉閩貴粵青藏川寧瓊使領A-Z]{1}[A-Z]{1}[A-Z0-9]{4}[A-Z0-9掛學警港澳]{1}$/;
//輸出 true
console.log(cPattern.test("京K39006"));15 包含中文正則
//包含中文正則
var cnPattern = /[\u4E00-\u9FA5]/;
//輸出 true
console.log(cnPattern.test("42度"));The above is the detailed content of 15 commonly used js regular expressions. For more information, please follow other related articles on the PHP Chinese website!
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