Home > Developer > Web Develop

An example of a simple form validation in jquery

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

The HTML code is as follows:

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<title></title>
<link href= "Css/style.css" rel= "stylesheet" type= "Text/css"/>
<!--Introducing jquery--
<script src= ". /scripts/jquery-1.3.1.js "type=" Text/javascript "></script>
<script type= "Text/javascript" >
//<! [cdata[
$ (function () {
//If required, add Red Star logo
$ ("form:input.required"). each (function () {
var $required = $ ("<strong class= ' High ' > *</strong>");//Create elements
$ (this). Parent (). append ($required);//And append it to the document
});
//After the text box loses focus
$ (' Form:input '). blur (function () {
var $parent = $ (this). parent ();
$parent. Find (". Formtips"). Remove ();
//Verify user name
if ($ (this). is (' #username ')) {
if (this.value== "" | | This.value.length < 6) {
var errormsg = ' Please enter a user name of at least 6 bits. ';
$parent. Append (' <span class= ' formtips onError ' > ' +errormsg+ ' </span> ');
}else{
var okmsg = ' input correct. ';
$parent. Append (' <span class= ' formtips onsuccess ' > ' +okmsg+ ' </span> ');
}
}
//Verify Mail
if ($ (this). is (' #email ')) {
if (this.value== "" | | (this.value!= "" &&!/[email protected]+\. [A-za-z] {2,4}$/.test (this.value)) {
var errormsg = ' Please enter the correct e-mail address. ';
$parent. Append (' <span class= ' formtips onError ' > ' +errormsg+ ' </span> ');
}else{
var okmsg = ' input correct. ';
$parent. Append (' <span class= ' formtips onsuccess ' > ' +okmsg+ ' </span> ');
}
}
}). KeyUp (function () {
$ (this). Triggerhandler ("blur");
}). focus (function () {
$ (this). Triggerhandler ("blur");
});//end Blur


//Submit, Final verification
$ (' #send '). Click (function () {
$ ("form:input.required"). Trigger (' blur ');
var numerror = $ (' form. OnError '). length;
if (numerror) {
return false;
}
Alert ("Registration is successful, password has been sent to your mailbox, please check.");
});

  //reset
  $ (' #res '). Click (function () {
      $ (". Formtips"). Remove ();  
  });
})
//]]>
</SCRIPT>
<body>

<form method= "POST" action= "" >
<div class= "int" >
<label for= "username" > User name:</label>
<input type= "text" id= "username" class= "required"/>
</div>
<div class= "int" >
<label for= "Email" > Email:</label>
<input type= "text" id= "email" class= "required"/>
</div>
<div class= "int" >
<label for= "Personinfo" > Profile:</label>
<input type= "text" id= "Personinfo"/>
</div>
<div class= "Sub" >
<input type= "Submit" value= "commit" id= "send"/><input type= "reset" id= "res"/>
</div>
</form>

</body>

An example of a simple form validation in jquery

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
jquery accordion form with validation example simple registration form in php with validation jquery form validation tutorial simple jquery contact form registration form validation in php example jquery validation example datetime validation in jquery

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More