常用正则表达式（转载）
转载
1 用户名正则
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var uPattern = /^[a-zA-Z0-9_-]{4,16}$/;
console.log(uPattern.test("iFat3"));
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2 密码强度正则
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var pPattern = /^.*(?=.{6,})(?=.*\d)(?=.*[A-Z])(?=.*[a-z])(?=.*[!@#$%^&*? ]).*$/;
console.log("=="+pPattern.test("iFat3#"));
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3 整数正则
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var posPattern = /^\d+$/;
var negPattern = /^-\d+$/;
var intPattern = /^-?\d+$/;
console.log(posPattern.test("42"));
console.log(negPattern.test("-42"));
console.log(intPattern.test("-42"));
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4 数字正则
可以是整数也可以是浮点数
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var posPattern = /^\d*\.?\d+$/;
var negPattern = /^-\d*\.?\d+$/;
var numPattern = /^-?\d*\.?\d+$/;
console.log(posPattern.test("42.2"));
console.log(negPattern.test("-42.2"));
console.log(numPattern.test("-42.2"));
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5 Email正则
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var ePattern = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
console.log(ePattern.test(<a href="mailto:65974040@qq.com">65974040@qq.com</a>));
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6 手机号码正则
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var mPattern = /^((13[0-9])|(14[5|7])|(15([0-3]|[5-9]))|(18[0,5-9]))\d{8}$/;
console.log(mPattern.test("18600000000"));
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7 身份证号正则
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var cP = /^[1-9]\d{5}(18|19|([23]\d))\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/;
console.log(cP.test("11010519880605371X"));
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8 URL正则
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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]$/;
console.log(cP.test("11010519880605371X"));
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9 IPv4地址正则
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var ipP = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
console.log(ipP.test("115.28.47.26"));
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10 十六进制颜色正则
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var cPattern = /^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/;
console.log(cPattern.test("#b8b8b8"));
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11 日期正则
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var dP1 = /^\d{4}(\-)\d{1,2}\1\d{1,2}$/;
console.log(dP1.test("2017-05-11"));
console.log(dP1.test("2017-15-11"));
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)$/;
console.log(dP2.test("2017-02-11"));
console.log(dP2.test("2017-15-11"));
console.log(dP2.test("2017-02-29"));
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12 QQ号码正则
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var qqPattern = /^[1-9][0-9]{4,10}$/;
console.log(qqPattern.test("65974040"));
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13 微信号正则
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var wxPattern = /^[a-zA-Z]([-_a-zA-Z0-9]{5,19})+$/;
console.log(wxPattern.test("RuilongMao"));
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14 车牌号正则
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var cPattern = /^[京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领A-Z]{1}[A-Z]{1}[A-Z0-9]{4}[A-Z0-9挂学警港澳]{1}$/;
console.log(cPattern.test("京K39006"));
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15 包含中文正则
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var cnPattern = /[\u4E00-\u9FA5]/;
console.log(cnPattern.test("42度"));
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树立目标，保持活力，gogogo！
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