15 Common JavaScript Regular expressions

Summary

Collected 15 commonly used JavaScript regular expressions, including user name, password strength, integer, number, email address (email), mobile phone number, social Security number, URL address, IPv4 address, hex color, date, QQ number, number, license plate number, Zhong Wenjing. Form validation processing Essentials, quickly collect it!

1 User name Regular

//用户名正则，4到16位（字母，数字，下划线，减号）

var uPattern = /^[a-zA-Z0-9_-]{4,16}$/;

//输出 true

console.log(uPattern.test("iFat3"));

2 Password Strength Regular

//密码强度正则，最少6位，包括至少1个大写字母，1个小写字母，1个数字，1个特殊字符

var pPattern = /^.*(?=.{6,})(?=.*\d)(?=.*[A-Z])(?=.*[a-z])(?=.*[[email protected]#$%^&*? ]).*$/;

//输出 true

console.log("=="+pPattern.test("iFat3#"));

3 integer Regular

//正整数正则

var posPattern = /^\d+$/;

//负整数正则

var negPattern = /^-\d+$/;

//整数正则

var intPattern = /^-?\d+$/;

//输出 true

console.log(posPattern.test("42"));

//输出 true

console.log(negPattern.test("-42"));

//输出 true

console.log(intPattern.test("-42"));

4 Number Regular
Can be an integer or a floating-point number

//正数正则

var posPattern = /^\d*\.?\d+$/;

//负数正则

var negPattern = /^-\d*\.?\d+$/;

//数字正则

var numPattern = /^-?\d*\.?\d+$/;

console.log(posPattern.test("42.2"));

console.log(negPattern.test("-42.2"));

console.log(numPattern.test("-42.2"));

5 Email Regular

//Email正则

var ePattern = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

//输出 true

console.log(ePattern.test("[email protected]"));

6 Mobile phone Number regular

//手机号正则

var mPattern = /^((13[0-9])|(14[5|7])|(15([0-3]|[5-9]))|(18[0,5-9]))\d{8}$/;

//输出 true

console.log(mPattern.test("18600000000"));

7 Regular ID number

//身份证号（18位）正则

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]$/;

//输出 true

console.log(cP.test("11010519880605371X"));

8 URL Regular

//URL正则

var urlP= /^((https?|ftp|file):\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/;

//输出 true

console.log(urlP.test("http://42du.cn"));

9 IPV4 Address Regular

//ipv4地址正则

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]?)$/;

//输出 true

console.log(ipP.test("115.28.47.26"));

106 Binary Color Regular

//RGB Hex颜色正则

var cPattern = /^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/;

//输出 true

console.log(cPattern.test("#b8b8b8"));

Regular for the 11th period

//日期正则，简单判定,未做月份及日期的判定

var dP1 = /^\d{4}(\-)\d{1,2}\1\d{1,2}$/;

//输出 true

console.log(dP1.test("2017-05-11"));

//输出 true

console.log(dP1.test("2017-15-11"));

//日期正则，复杂判定

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)$/;

//输出 true

console.log(dP2.test("2017-02-11"));

//输出 false

console.log(dP2.test("2017-15-11"));

//输出 false

console.log(dP2.test("2017-02-29"));

QQ Number Regular

//QQ号正则，5至11位

var qqPattern = /^[1-9][0-9]{4,10}$/;

//输出 true

console.log(qqPattern.test("65974040"));

Regular number 13th

//号正则，6至20位，以字母开头，字母，数字，减号，下划线

var wxPattern = /^[a-zA-Z]([-_a-zA-Z0-9]{5,19})+$/;

//输出 true

console.log(wxPattern.test("RuilongMao"));

14 Car Grade Regular

//车牌号正则

var cPattern = /^[京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领A-Z]{1}[A-Z]{1}[A-Z0-9]{4}[A-Z0-9挂学警港澳]{1}$/;

//输出 true

console.log(cPattern.test("京K39006"));

15 includes Zhong Wenjing

//包含中文正则

var cnPattern = /[\u4E00-\u9FA5]/;

//输出 true

console.log(cnPattern.test("42度"));

15 Common JavaScript Regular expressions