Simple Email Validation Function
Jan 14, 2007
I am a Javascript newbie and I'm trying to implement a very simple form validation function, but for some reason it won't work. I must be doing something fundamentally wrong here. Maybe somebody can hint me into the right direction? My code looks like so:
function validate_form ()
{
valid = true;
var re = new RegExp();
re.compile("[A-Za-z0-9._-]+@[^.]+..+");
if ((document.form.author_name.value == "")
|| (document.form.author_email.value == "")
|| (!re.test(document.form.author_email.value))
|| (document.form.author_message.value == ""))
{
alert ("Please fill in all required fields.");
valid = false;
}
return valid;
}
The tricky bit is the email validation using the regular expression. Apart from that it all works.
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Jun 20, 2010
I am trying to do a simple email validation for a form with javascript that doesn't seem to work. I have tried pasting it into both the head and body of my html document. I have also tried unsuccessfully to link it as an external .js file. I have tried numerous scripts that I have found online but none have worked. I am new to programming and don't have much experience with javascript.
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May 17, 2009
I am in need of some very simple javascript to validate email address and a phone number from a form.
The email address only needs to:
1. Check that the box is not empty.
2. Check that the text imputted contains an '@' symbol.
3. Check that the text imputted contains atleast 1 Period.
The phone number only needs to:
1. Check that the box is not empty.
2. Check that there is no more than 11 characters.
3. check that only numeric characters have been inputted.
I would like it to report (failure) back as text on the page under the box that has the problem rather than a window.
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May 7, 2009
i have some script java script which is working but i want to do it some thing else
[Code]....
This script is working for email validation also if email box is empty it says to fill it i want that for all if some one left any box in form it says fill that. i have tried many ways but failed that's why posting here. and the last function is for contactno INPUT field so one can only put number in the field. HTML CODE
[Code]...
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Jul 28, 2010
I am using the jquery validation plugin to validate a form's email address field. The validation works but with the minor exception that when trailing whitespace is entered after the email the validation fails. I'm not sure if this is because of the regexp or a missing trim.
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May 22, 2009
I am writing a script that allows the user to send a simple email to our admin officer. the problem is that the email gets sent but when you read it you would see a bunch of those " " incorporated inside the email. How do I get rid of these tags and convert them into breaks? I tried replace " " with "<br/>" and it still doesnt do anything?
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May 11, 2010
Following is the code I have written to see if the RE is right in validating an email field, But it seems not to work. Any help is welcome:
Code:
<html>
<head>
<script type="text/javascript">
function checkemail()
[Code]..
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May 21, 2009
How can I set email validation in jquery I am using .net
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Apr 11, 2011
I have a contact page on my website and trying to validate an email address, but can't get it to work.I want to validate that my fields have been field out and as well, want to validate the email address. Validation of the forms works, however I can't get the email validation working..
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Aug 3, 2006
I have a form which mostly works and validates with javascript Name, details, email, etc.
However the email bit is happy to validate with just @. instead of a@b.net/com/whatever.
It's probably a really simple fix, but I'm still new to javascript.. Hopefully someone can point out what I need to add / change in the following section of script.
if(form.email.value=="")
{
alert("Please Enter Email Address");
return false;
}
if(form.email.value!="")
{
str=form.email.value;
var AtTheRate= str.indexOf("@");
var DotSap= str.lastIndexOf(".");
if (AtTheRate==-1 || DotSap ==-1)
{
alert("Enter Proper Email Address");
return false;
}
else
{
if( AtTheRate > DotSap )
{
alert("Enter Valid Email Address");
return false;
} } }
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Feb 2, 2010
Whoever allowed apostrophes to be valid within emails needs some talking to!
Anyway. I have just found out that this JS function I have been using and have no idea how it works does not allow emails with apostrophes in it. Does anyone know how to alter this code to allow apostrophes?
var pattern = new RegExp(/^(("[w-s]+")|([w-]+(?:.[w-]+)*)|("[w-s]+")([w-]+(?:.[w-]+)*))(@((?:[w-]+.)*w[w-]{0,66}).([a-z]{2,6}(?:.[a-z]{2})?)$)|(@[?((25[0-5].|2[0-4][0-9].|1[0-9]{2}.|[0-9]{1,2}.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2}).){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})]?$)/i);
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Feb 27, 2010
i'm not sure if something like this has been answered before, so sorry if this is a repost.what i'm trying to do is have a div become visible on an invalid form entry.here is the code that i have:
Code:
function validate(c_form,email) {
var reg = /^([A-Za-z0-9_-.])+@([A-Za-z0-9_-.])+.([A-Za-z]{2,4})$/;
[code]....
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Oct 28, 2006
I've read enough about email validation to know that the only real validation is having a user respond to a confirmation message you've sent them. However, I want to store the address temporarily, so I want to make sure what is entered is safe to work with.
I have a basic understanding of regexps, so I could write one that checks for a simple
format like: something followed by @ followed by something followed by
.. followed by something. I can also make a good guess at understanding
the regexps I come across in validation schemes people have posted.
However, each scheme that is posted seems to get criticized for
invalidating some esoteric, but valid, addresses.
I'm wondering if there is a minimum validation you can do that will
prevent basic attacks like sql injection attacks. For example, if I
weed out anything with single and double quotes, and semicolons, am I
barring some people unnecessarily? Seems like you'd be trying to mess
with people by putting a semicolon in your email address.
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Apr 13, 2010
I am trying to develop a form with email validation but i am recieving an error which is this
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; GTB6.3; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Timestamp: Tue, 13 Apr 2010 11:48:06 UTC
[Code]....
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Nov 20, 2010
I found script and put it on my website to validate email addresses. But now there are email addresses like q.com that can't register on my site because the script is looking for at least two digits before the ".com"
Code:
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Jun 23, 2005
I have got some problem when i check email through javascript. Currently, i have used this script:
/^[^@]+@[^@]+.[a-z]{2,}$/i
but through this expression it is unable to find that after "@" and before "." there's any string or not.
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Jan 29, 2007
what is the javascript validation for the email address like
php.ycho@gmail.com
i used the simple validation like
"^w{1,}@w{1,}(.w{1,}){1,}$"
which works well for php@gmail.com but doesnot work for php.ycho@gmail.com
can anybody make a modification to above pattern to work for php.ycho@gmail.com
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Mar 4, 2008
I want to say that if the email textbox is not empty, then do the Email validation, which does work on its own. It is part of a function.
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Nov 3, 2009
I have a form with an e-mail, password and confirm password field. I also have two Javascript scripts, one for the e-mail field and one for the password and confirm password field. They seem to work together. But when I fill in an invalid e-mail address and a valid password, Javascript forgets to check if the e-mail address is valid and sends the form.How can I let both Javascript scripts work better together? Or does someone know how to merge these two scripts?Below the whole code:
Code JavaScript:
// E-mail validation
function validate_required(field,alerttext)
[code]....
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Jun 13, 2003
I'm trying to write some validation for a field called Propid, in a form called qSearch. Basically if there's nothing in Propid, or it is says "ref no.", I want to alert the user, otherwise, I want the form to submit.
Here's what I have at the moment:
Code:
<script>
function checksearch()
{
if (qSearch.Propid.value!="ref no." )
{
alert ("Select reference number" );
qsearch.Propid.focus();
return;
}
if (qSearch.Propid.length != 0)
{
alert ("Select reference number" );
qSearch.Propid.focus();
return false;
}
}
}
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Oct 7, 2009
I am looking to add an email validation to my new user registration form. Currently, we do not validate (or activate) a new user via an activation link in the email. We don't have that process. I'd like to get my hands on the code to randonly create a security code and the actual code to sent the validation email. Can anyone help me out here? I'm absolutely new to PHP or ASP coding. I do know some HTML.
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Nov 25, 2009
I am trying to create a script for checking that checks that the email address entered into two input boxes is the same when a submit button is clicked, I have these two input boxes
<input type="text" name="user_email" id="user_email" />
<input type="text" name="user_email2" id="user_email2" />
This javascript code
<script type="text/javascript">
var email1 = document.getElementById(user_email);
var email2 = document.getElementById(user_email2);
function checkEmail(){
if (email1 != email2){
alert("The two email addresses are not the same");
}}
</script>
And this code for the button
<input type="submit" name="submit" id="submit" onSubmit="checkEmail" />
However this code is not working.
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Oct 15, 2005
I've been playing with this form validation method for a while and have
tried an array of things but haven't had any luck with a couple items.
1. The validateForm() function doesn't detect when the Min price is
greater than the maximum price.
2. The validateForm() function doesn't call isNumber() on the minBaths,
maxBaths, minBeds, or maxBeds.
3. Despite errors in input and the validateForm() function returning
false, the form is still submitted.
Here's the code:
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Jan 6, 2011
Basically I'm using the plugin to validate a form. I've got the basics set up and working. Now I'm trying to use remote so that I can check for a duplicate email address. The problem is as soon as I add my checking script the validation stops working on the email field completely. It constantly says "please enter a valid email address" no matter what I put in the field. If I don't have the remote bit in my code the email field validation works correctly. Here is my site: [URL].
This is my code:
login.js
$(document).ready(function(){
$('#content form').validate({
rules: {
title:{
required: true
},
name: { .....
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Apr 4, 2011
I've used the excellent validate plugin (http://bassistance.de/jquery-plugins/jquery-plugin-validation/) to add JS validation to forms. I'm aware there's a built-in setting to validate an email address. However, I'd like to validate a list of email addresses, and I don't think the plugin contains a built-in solution. What's the best way to implement this?
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Oct 2, 2009
I'm using a jquery plugin to validate email addresses submitted on a form.The plug-in is available at this address:
http://bassistance.de/jquery-plugins...in-validation/
The code I use is as follows:
Code JavaScript:
<SCRIPT type="text/javascript">
$().ready(function() {code]....
How can I bypass the validation for a specific email address? Let's say "if the user submits abc@test.com" then I do not want to validate this address and accept it as it is.
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