Form Validation using JS ?

Question

0.00/5 (No votes)

See more:

I have followin div on my form.

HTML

<div id="error">Error! </div>

<form id="contact">
    <p>Title:
        <select id="title">
            <option value="Mr.">Mr.</option>
            <option value="Mrs.">Mrs.</option>
            <option value="Miss.">Miss.</option>
        </select>
    </p>
    <p>First name: <input id="first" /> </p>
    <p>Last name: <input id="last" /> </p>
    <p>Email: <input id="email" /> </p>
    <p>Zip: <input id="zip" /> </p>
    <p>Phone: <input id="phone" /> </p>
    <p> <input type="submit" value="Submit" /> </p>
</form>

<div id="result"> </div>

Can you please help me to build js for validate all form values ? I dont have big knowledge in JS.

Posted 22-Sep-14 18:26pm

Member 11052746

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Gihan Liyanage · Accepted Answer · 2014-09-22T18:32:00

Here is my validation function , edited for your requirement.

JavaScript

<pre lang="xml">function Validate() {
    $('#error p').remove();
    var error = $('#error');
    var correct = true;
    if ($('#first').val() == '') {
        error.append('<p>No first name provided</p>');
        correct = false;
    }
    if ($('#last').val() == '') {
        error.append('<p>No last name provided</p>');
        correct = false;
    }
    var email = $('#email').val();
    if (email == '') {
        error.append('<p>No email provided</p>');
        correct = false;
    }
    else if (email.indexOf('@') == -1) {
        error.append('<p>Email does not contain @ symbol</p>');
        correct = false;
    }
    else if (email.lastIndexOf('.') < email.indexOf('@')) {
        error.append('<p>Email does not contain a . (full stop)</p>');
        correct = false;
    }
    if ($('#zip').val().length != 5) {
        error.append('<p>Zip code must be 5 digits</p>');
        correct = false;
    }
    if (correct) {
        error.css('display', 'none');        // clear the result div
        $('#result').empty();
        $('#result').append('<p>Hello, ' + $('#title').val() + ' ' + $('#last').val() + '!</p>');
    }
    else {
        error.css('display', 'block');
    }
    return false;
}
$('#contact').submit(Validate);
</pre>

Please see the example on jsfiddle

http://jsfiddle.net/LLpE3/167/[^]