harwind

harwind

I’m working on a web application where users can sign up with their email addresses. To ensure data integrity, I want to implement client-side validation to check if the email address provided by the user is in a valid format.

Here’s a simplified version of my JavaScript code:

function validateEmail(email) {
    // Regular expression to validate email format
    var regex = /* Regular expression goes here */;
    
    if (regex.test(email)) {
        return true;
    } else {
        return false;
    }
}

var userEmail = "user@example.com";
var isValid = validateEmail(userEmail);

if (isValid) {
    console.log("Email is valid.");
} else {
    console.log("Email is not valid.");
}

In this code, I have a validateEmail function that should return true if the email parameter matches a valid email format and false otherwise. However, I’m not sure what regular expression to use to validate email addresses correctly.

Could you provide a JavaScript code example that includes a regular expression for validating email addresses? Additionally, it would be helpful if you could explain how the regular expression works and any considerations for email validation in JavaScript. Thank you for your assistance!

/js
4 711 4

Popular General Dev topics Top

Devtalk
Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...
1016 16827 371
New
AstonJ
You might be thinking we should just ask who’s not using VSCode :joy: however there are some new additions in the space that might give V...
105 4396 51
New
AstonJ
Inspired by this post from @Carter, which languages, frameworks or other tech or tools do you think is killing it right now? :upside_down...
160 3625 49
New
herminiotorres
Someone where use Doom Emacs right now? I like to starting this topic to discuss it and learn a little bit more, not just only the emacs ...
21 2415 14
New
AstonJ
Do we have any digital nomads here? Anyone fancy it? If so, which countries would you consider? I’ve been toying with the idea for a wh...
57 1863 24
New
First poster: malloryerik
GitHub - hlissner/doom-emacs: An Emacs framework for the stubborn martian hacker. An Emacs framework for the stubborn martian hacker - G...
55 2855 17
New
First poster: joeb
The File System Access API with Origin Private File System. WebKit supports new API that makes it possible for web apps to create, open,...
43 2740 22
New
AstonJ
This was interesting: He’s definitely more of an Emacs fan (which is fine) and the thing I found interesting is how you wo...
18 1855 8
New
First poster: bot
To build a web application you need to make architecture decisions across a range of topics. The beauty of Ruby on Rails or Django is tha...
0 2194 1
New
CommunityNews
The Definitive PHP 7.2, 7.3, 7.4, 8.0, and 8.1 Benchmarks (2023). We tested the performance of 14 PHP platforms (WordPress, Drupal, Lara...
0 1009 0
New

Other popular topics Top

AstonJ
A thread that every forum needs! Simply post a link to a track on YouTube (or SoundCloud or Vimeo amongst others!) on a separate line an...
193 4238 93
New
Rainer
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
195 6223 96
New
AstonJ
If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...
3 3434 4
New
New
Margaret
Hello everyone! This thread is to tell you about what authors from The Pragmatic Bookshelf are writing on Medium.
1117 25021 736
New
wmnnd
Here’s the story how one of the world’s first production deployments of LiveView came to be - and how trying to improve it almost caused ...
37 2477 15
New
OvermindDL1
Woooooooo! This is such a huge release for it, and 2 years incoming! In short, the library is now using an updated hyper backend (not j...
20 2653 6
New
mafinar
This is going to be a long an frequently posted thread. While talking to a friend of mine who has taken data structure and algorithm cou...
108 8800 32
New
New
First poster: bot
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
0 2429 1
New