Some common Javascript Form Verification Code

This article introduces some common Javascript Form Verification code, including email address, phone number, mobile phone number, ID card, website address, and so on.

The Code is as follows:

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// Verify Email Function checkEmail (mail ){ If (mail. length> 0 & mail. length <101 ){ Var regex =/^ [_. 0-9a-zA-Z +-] + @ ([0-9a-zA-Z] + [0-9a-zA-Z-] *.) + [a-zA-Z] {2, 4} $ /; If (regex.exe c (mail )){ Return true; } } Return false; } // Verify the zip code Function checkZip (zip ){ Var regex =/^ [0-9] {6} $ /; If (regex.exe c (zip )){ Return true; } Return false; } // Verify the ID card Function checkIdCard (idcard ){ Var regex =/^ [0-9xX] {15,18} $ /; If (regex.exe c (idcard )){ Return true; } Return false; } // Verify the fixed phone number Function checkTel (tel ){ Var regex =/^ [0-9] {3, 4}-[0-9] {7, 8} $ /; If (regex.exe c (tel )){ Return true; } Return false; } // Verify the mobile phone number Function checkMobile (mobile ){ Var regex =/^ [0-9] {11} $ /; If (regex.exe c (mobile )){ Return true; } Return false; } // Verify QQ Function checkQQ (qq ){ Qq =$. trim (qq ); If (qq. length> 0 & qq. length <101 ){ Var regex =/^ [0-9] {1, 12} $ /; If (regex.exe c (qq )){ Return true; } Else { Return checkEmail (qq ); } } Return false; } // Verify the name in Chinese, English or numbers Function checkUname (name ){ Var regex =/^ [a-zA-Z0-9u4e00-u9fa5] {} $ /; If (regex.exe c (name )){ Return true; } Return false; } Function checkUname (name, start, end ){ Var regex = new RegExp ("^ [a-zA-Z0-9 \ u4e00-\ u9fa5] {" + start + "," + end + "} $ "); If (regex.exe c (name )){ Return true; } Return false; } // Verify the URL Function checkSiteUrl (url ){ Var regex =/^ http: // ([a-zA-Z0-9] ([a-zA-Z0-9-] {} [a-zA-Z0-9])?.) + [A-zA-Z] {2, 6} (: [0-9] {1, 5 })? $ /; If (regex.exe c (url )){ If (url. length: <201 ){ Var istrue = false; $. Ajax ({ Type: "post ", Url: "register. aspx ", DataType: "html ", Async: false, Data: "url =" + escape (url) + "& t = checkUrl ", Cache: false, Success: function (data ){ If (data = "can "){ Istrue = true; } } }); If (istrue ){ Return true; } } } Return false; }