Email verification…oh no, not that!

[kamaboko]

Hi,

New to JS and am working on verifying email input. I’ve done some searching on the net for a suitable regex to heist, but in the process came across a lot varying opinions and the practicality of using regex for verification. In short, no agreement on a one-solution covers every conceivable situation. That said, what are you using (regex or otherwise) to validate emails?

Thanks,
K

[shaneisme]

Well, if it was important, I wouldn’t be checking if it’s a valid email client-side surely.

But there’s nothing wrong with using regex in this case, I don’t think JS has a built-in method for it. There may also be libraries that have this as part of their core function.

Don’t forget that using an HTML5 input type=email will solve the issue in modern browsers anyway.

[__]

a regex that really validates email addresses is quite long, and might not exist anyway.

As shaneisme noted, client-side validation is nothing but a user convenience anyway, so there’s no point in expending too much energy on it. The more fine-grained you make your check, the more likely you are to end up with false negatives, which is bad UX. Even server-side, the only true test of validity is actually sending an email and getting a response back.

[Author]

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