Posted in jquery
6
12:31 am, October 22, 2021

validate email address from string with jquery working function

Here is a working example of this post validate email address from string.

This has very basic checking of an email address by checking that the string has an @ and a . in it.

Note: this is still not checking the @ properly still working on this one. 

Update: I have split up the checking for the . and the @ as they were conflicting, they are detected now, but still may not give a valid email address check, as it only checks for the existance of the characters rather than their location in the string. So its just very basic validation. 

Validate Demo

HTML

<input type="email" id="emailfield" placeholder="Enter Email Address">
<button onclick="validate_email();">Check Email Address</button>

Scripts

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" referrerpolicy="no-referrer"></script>

Javascript

function validate_email() {
        var emailfield = $("#emailfield").val();
        var atpos = emailfield.indexOf("@");
        var dotpos = emailfield.lastIndexOf(".");
        console.log(atpos);

        // check the @ 1st
        if(atpos >= 1) {} else {
          alert("Email missing @");
          return false;
        }

        // check the dot pos
        if(dotpos >= 1) {} else {
          alert("Email missing .");
          return false;
        }
        alert("Email is valid");
      }

View Statistics
This Week
0
This Month
0
This Year
0

No Items Found.

Add Comment
Type in a Nick Name here
 
Search Code
Search Code by entering your search text above.
Welcome

This is my test area for webdev. I keep a collection of code snippits here, mostly for my reference. Also if i find a good site, i usually add it here.

Join me on Substack if you want me to send you a collection of the things i have done or found or read for the week. Or follow me on twitter if you prefer, i dont post much but i probably should!

❤👩‍💻🕹

Random Quote
The problem with hoarding is you end up living off your reserves. Eventually, you’ll become stale. If you give away everything you have, you are left with nothing. This forces you to look, to be aware, to replenish. . . . Somehow the more you give away, the more comes back to you.
Paul Arden