simple email validation in javascript

Enter the email address in JavaScript to automatically prompt the instance code. This article describes how to automatically prompt the instance code by entering the email address in JavaScript. For more information, see I wanted to share my previous comments on artTemplate source code parsing. However, after a year,

JavaScript Data Validation Class/*JavaScript: Authentication class Author: Yang Bo date:201603231, User name authentication 2, password Authentication 3, repeat password verification 4, mailbox verification 5, mobile phone number verification 6, Verification code verification*/varYb_validate =function(){ //User Name Verification This. Username =function(us

, the last time you select the Cancel color$ ("table. Contenttr "). Click (function () {$ (this). addclass ("AVB"). Siblings (). Removeclass ("AVB");UserID = $ (this). attr ("userid");});Gets the value of RAD loaded into radio$ ("Input[name= ' statics '][value=" +data[0]. Role status + "]"). attr ("Checked", true);Determine which Rad is selected$ (". Radclass"). each (function () {if ($ (this). attr ("checked")) {radval=$ (This). Val ();}})First 7 digits of mobile phone numberif ($ (". Photo_tex

returndocument.getElementById (ID);8 }9 Ten varemail = $ (' email '); One varresult = $ (' result '); A varSubmit = $ (' Submit '); - -Email.addeventlistener (' KeyUp ',function () { the if(Email.value.indexOf (' @ ') > 0) { -result.innerhtml = ' '; -}Else if(Email.value.indexOf (' @ ') ) { -result.innerhtml = ' Please enter the correct mailbox format, including @ '; + } -},false); + ASubmit.addeventlistener (' click ',function () { at

, -}$ the correct format is: Start with a letter, length in 6-18, only characters, numbers, and underscores can be included. Verify that you contain^%',; =?$\ "and other characters:[^%',; =?$\x22]+Verify Kanji:^[\u4e00-\u9fa5],{0,}$ Verify email address:^\w+[-+.] \w+) *@\w+ ([-.] \w+) *\.\w+ ([-.] \w+) *$ verify InternetURL:^http://([\w-]+\.) +[\w-]+ (/[\w-./?%=]*)? $; ^[a-za-z]+://(w+ (-w+) *) (. ( w+ (-w+) *) * (? s*)? $ verify Phone Number:^ (\ (\d

javascript| encryption Because of the prevalence of spam, you want to encrypt the email address in the Web page, previously used such tools, but yesterday was unable to find, so the Internet to find, in the sky to find a such encryption tool, but the results should be registered, so simple function to register Ah, my God ~, so I used JS wrote a , very

Fuchangxi's Regular:Copy CodeThe code is as follows:/^ ([0-9a-za-z\-_\.] +) @ ([0-9a-z]+\. [A-z] {2,3} (\. [A-z] {2})?) $/g The start must be one or more word characters or--plus @, then one or more word characters or--. Then the point is "." and a combination of word characters and--can have one or more combinations.Copy CodeThe code is as follows:I don't quite understand the specific rules of the mailbox. It's easier to feel the regular.Check out several types of mailbox @ prefixes1, Pure Di

The examples in this article summarize the commonly used validation functions for JavaScript. Share to everyone for your reference. The specific summary is as follows: First, String class validation 1. Length Limit Copy Code code as follows: 2. Can only be Chinese characters Copy Code code as follows: 3. "Can only be Engli

Recommended reading: JavaScript form verification length JavaScript form Validation-the first recognition of regular expressions JavaScript form Validation-uncovering the veil of the regular expression JavaScript can be used to

the previous general verification method in three fields of year/year, respectively), only the maximum value of the date is legal check;4.2, date format verification (please note that this validation does not validate the validity of the date, and has not found a way to get the year date data from the format ^_^):Where the format only supports Y, M, D, H, M, s (other characters as non time characters)4.3. List verification:Verify that the list (check

Cases Add the onsubmit attribute to the form or the Add OnClick property of the Submit button, the value is return check (), the check is a JavaScript function, the validation table is single, no call, even if the validation fails will be submitted. In the check function, the validation failure returns false and retur

most complete and most accurate method: The code is as follows Copy Code function Isnumber (onum){if (!onum) return false;var strp=/^d+ (. d+)? $/;if (!strp.test (Onum)) return false;try{if (parsefloat (onum)!=onum) return false;}catch (ex){return false;}return true;} This JavaScript code is very concise, you can see. The code is as follows Copy Code There is a more stupid

-\\xff]+$",//only acsii characters "^\\d{6}$",//ZIP code "^ (13|15|18) [0-9]{9}$",//Mobile phone "^ (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 "^\\s+$",//Non-empty "(.*)\\. (JPG|BMP|GIF|ICO|PCX|JPEG|TIF|PNG|RAW|TGA) $ ",//Picture "(.*)\\. (rar|zip|7zip|tgz) $ ",//Compressed file "^\\d{4}" (\\-|\\/|\.) \\d{1,2}\\1\\d{1,2}$ ",//Date

Form validation is used to occur on the server, the client has entered all the necessary data, and then presses the Submit button. If the data of some of the clients that have been entered is either in the wrong form or simply lost, the server sends all the necessary data back to the client and requests the form to be resubmitted with the correct information. This is a lengthy process that will increase the burden on the server.

javascript| Form Validation | dynamic | function ' Please dump it for checkform_js.asp use '***************************************************************************** ' Function name: Checkform_js (FRMNAME,ERRSTR) ' Function: Dynamically write JavaScript Form validation functions using ASP Checksubmit () ' Use meth

Account nbsp; nbsp; nbsp; Number: Secret nbsp; nbsp; nbsp; Code: Confirm Password: Surname nbsp; nbsp; nbsp; Name: Sex nbsp; nbsp; nbsp; Do not: Year nbsp; nbsp; nbsp; Aged: Email: Fixed phone: Mobile: Implementing form validation using JavaScript and regular expressions (Css,js exercise)

JavaScript Form Validation Regular expression encyclopedia Using regular expressions to determine whether the Arabic numerals are 0-9 Copy Code code as follows: function Regisdigit (fdata) { var reg = new RegExp ("^[0-9]$"); Return (Reg.test (fdata)); } Use this expression to get the length of the string Copy Code code as follows: function Regdatalength (fdata

Copy Code code as follows: Http:// JavaScript Validation Form Encyclopedia 1. Length Limit Copy Code code as follows: 2. Can only be Chinese characters 3. "Can only be English Copy Code code as follows: 4. Only the numbers Copy Code code as follows: 5. Only English characters and numbers Copy Code code as foll

Native JavaScript phone number verification, email verification, id verification. When used, pass in the string to be validated, return ture to represent conformance, return false code does not conform.Use: document.getElementById ("Btnphone"). Onclick=function () { alert (Validationhandler.isphone ( document.getElementById ("Phoneinput"). Value) ==true? " Legal ":" Illegal ") }; document.getEl

Verify IPfunction IsIP (ipstr) {var reg =/^ (\d{1,2}|1\d\d|2[0-4]\d|25[0-5]) \. ( \D{1,2}|1\D\D|2[0-4]\D|25[0-5]) \. (\d{1,2}|1\d\d|2[0-4]\d|25[0-5]) \. (\d{1,2}|1\d\d|2[0-4]\d|25[0-5]) $/g;return Ipstr.match (reg);}The regular verification of this URL is comprehensive, it verifies that the situation includes IP, domain name, FTP, level two domain name, the domain name of the file, domain name plus port! User name, etc. informationfunction Isurl (str_url) {var Strregex = ' ^ ((https|http|ftp|rts