常见的javaScript正则表达式

时间:2021-09-19 15:58:49
  1. 用户名正则
    //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}$/;
    //输出 true
    console.log(uPattern.test(“iFat3”));
  2. 密码强度检测
    //密码强度正则,最少6位,包括至少1个大写字母,1个小写字母,1个数字,1个特殊字符
    var pPattern = /^.(?=.{6,})(?=.\d)(?=.[A-Z])(?=.[a-z])(?=.*[!@# /;
    //输出 true
    console.log(“==”+pPattern.test(“iFat3#”));
  3. 整数正则
    //正整数正则
    var posPattern = /^\d+ /;//varnegPattern=/\d+ /;
    //整数正则
    var intPattern = /^-?\d+$/;
    //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. 数字正则
    //正数正则
    var posPattern = /^\d*.?\d+ /;//varnegPattern=/\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正则
    //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(“65974040@qq.com”));

  6. 手机号码正则
    //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. 身份证号正则
    //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正则
    //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地址正则
    //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”));

  10. 十六进制颜色正则
    //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”));

  11. 日期正则
    //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} /;//trueconsole.log(dP1.test(20170511));//trueconsole.log(dP1.test(20171511));//vardP2=/(?:(?!0000)[09]4(?:(?:0[19]|1[02])(?:0[19]|1[09]|2[08])|(?:0[139]|1[02])(?:29|30)|(?:0[13578]|1[02])31)|(?:[09]2(?:0[48]|[2468][048]|[13579][26])|(?:0[48]|[2468][048]|[13579][26])00)0229) /;
    //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”));

  12. QQ号码正则
    //QQ号正则,5至11位
    var qqPattern = /^[1-9][0-9]{4,10}$/;
    //输出 true
    console.log(qqPattern.test(“65974040”));

  13. 车牌号正则
    //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”));

  14. 包含中文
    //包含中文正则
    var cnPattern = /[\u4E00-\u9FA5]/;
    //输出 true
    console.log(cnPattern.test(“42度”));

原文:http://funteas.com/topic/592f828e572bfb9c4d965ab0