Some common regular expressions in JavaScript (recommended) _ Regular expressions

The

  Regular expression (regular expression) describes a string matching pattern that can be used to check whether a string contains a seed string, replaces a matching substring, or extracts a substring from a string that matches a condition.

var validateregexp = {decmal: "^ ([+-]?) \\d*\\.\\d+$ ",//floating-point number decmal1:" ^[1-9]\\d*.\\d*|0.\\d*[1-9]\\d*$ ",//Positive floating-point number decmal2:" ^-([1-9]\\d*.\\d*|0.\\d*[1-9]\\d* ) $ ",//Negative floating-point number decmal3:" ^-? ([1-9]\\d*.\\d*|0.\\d*[1-9]\\d*|0?. 0+|0) $ ",//floating-point number decmal4:" ^[1-9]\\d*.\\d*|0.\\d*[1-9]\\d*|0? 0+|0$ ",//Non-negative floating-point number (positive floating-point number + 0) DECMAL5:" ^ (-([1-9]\\d*.\\d*|0.\\d*[1-9]\\d*)) |? 0+|0$,//non-positive floating-point number (negative floating-point number +//0) Intege: "^-?" [1-9]\\d*$,//Integer intege1: "^[1-9]\\d*$",//Positive integer intege2: "^-[1-9]\\d*$",//Negative integer num: "^ ([+-]?") \\d*\\.? \\d+$ ",//Number NUM1:" ^[1-9]\\d*|0$ ",//positive (positive integer + 0) num2:" ^-[1-9]\\d*|0$ ",//negative (negative integer + 0) ASCII:" ^[\\x00-\\xff]+$ ",//Only acsii character Chinese: "^[\\u4e00-\\u9fa5]+$",//Only Chinese color: "^[a-fa-f0-9]{6}$",//Color date: "^\\d{4}" (\\-|\\/|\.) \\d{1,2}\\1\\d{1,2}$ ",//Date Email:" ^\\w+ (-\\w+) | ( \\.\\w+)) *\\@[a-za-z0-9]+ (\\.| -) [a-za-z0-9]+) *\\. [a-za-z0-9]+$ ",//Mail Idcard:" ^[1-9] ([0-9]{14}|[ 0-9]{17}) $ ",//ID IP4:" ^ (25[0-5]|2[0-4]\\d|[ 0-1]\\d{2}| [1-9]?\\d] \. (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d] \. (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d] \. (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d) $ ",//IP address letter:" ^[a-za-z]+$ ",//letter_l:" ^[a-z]+$ ",//lowercase letter Letter_u:" ^[a-z]+$ ",//Capital Letter Mobile:" ^0 ? (13|15|18|14|17) [0-9] {9}$ ",//Mobile phone Notempty:" ^\\s+$ ",//Not empty password:" ^.*[a-za-z0-9\\w_-]+.*$ ",//Password Fullnumber:" ^[0-9]+$ ",//Digital Picture:" (.*)\\. (JPG|BMP|GIF|ICO|PCX|JPEG|TIF|PNG|RAW|TGA) $ ",//Picture QQ:" ^[1-9]*[1-9][0-9]*$ ",///QQ number RAR:" (. *) \. (rar|zip|7zip|tgz) $ ",//Compressed file Tel:" ^[0-9\-() ()]{7,18}$ ",//Phone number function (including verification of domestic area code, international area code, extension number) URL:" ^http[s]?:\ \/\\/([\\w-]+\\.) +[\\w-]+ ([\\w-./?%&=]*) $ ",//URL username:" ^[a-za-z0-9_\\-\\u4e00-\\u9fa5]+$ ",//Username deptname:" ^[a-za-z0-9_ "() () \\-\\u4e00-\\u9fa5]+$ ",//unit name ZipCode:" ^\\d{6}$ ",//Zip Realname:" ^[a-za-z\\u4e00-\\u9fa5]+$ ",//real name CompanyName:" ^[a-za-z0-9_ () () \\-\\u4e00-\\u9fa5]+$ ", Companyaddr:" ^[a-za-z0-9_ () () \\#\\-\\u4e00-\\u9fa5]+$ ", Companysite:" ^ Http[s]?:\ \/\\/([\\w-]+\\.)
+[\\w-]+ ([\\w-./?%&#=]*)? $ "}; Validation rule var ValidaTerules = {isnull:function (str) {return (str = = "" | |
typeof str!= "string"); }, Betweenlength:function (str, _min, _max) {return (str.length >= _min && str.length <= _max);}, Isuid:f Unction (str) {return to New RegExp (validateregexp.username). Test (str);}, Fullnumbername:function (str) {return new REGEXP
(validateregexp.fullnumber). Test (str); }, Ispwd:function (str) {return/^.* ([\w_a-za-z0-9-]) +.*$/i.test (str);}, Ispwdrepeat:function (str1, str2) {return (str
1 = = str2); }, Isemail:function (str) {return new RegExp (validateregexp.email). Test (str);}, Istel:function (str) {return new REGEXP
(Validateregexp.tel). Test (str);  Ismobile:function (str) {return new RegExp (validateregexp.mobile). Test (str); Checktype:function (Element) {return
(Element.attr ("type") = = "checkbox" | | element.attr ("type") = = "Radio" | | element.attr ("rel") = = "select"); }, Isrealname:function (str) {return new RegExp (validateregexp.realname). Test (str);, iscompanyname:function (str) {
return new RegExp (validateregexp.companyname). Test (str); }, Iscompanyaddr:function (str) {return new RegExp (VALIDATEREGEXP.COMPANYADDR). Test (str);}, Iscompanysite:function ( STR) {return new RegExp (validateregexp.companysite). Test (str);, simplepwd:function (str) {//var pin = $ ("#regName"). V
Al (); if (Pin.length > 0) {//pin = Strtrim (PIN);//if (pin = = str) {//return true;//}//} return Pwdlevel (str) = =
1;
}, Weakpwd:function (str) {for (var i = 0; i < weakpwdarray.length i++) {if (weakpwdarray[i] = = str) {return true;
return false;
}
}; Hibernate function Sleep (numbermillis) {var now = new Date (), var exittime = now.gettime () + Numbermillis; while (true)
= new Date ();
if (Now.gettime () > Exittime) return; }
}

The above is a small set of JavaScript to introduce some commonly used regular expressions (recommended), I hope to help you, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!