Email address validation can be much trickier than it sounds. Here's why and my advice on how to approach this problem.

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30 seconds of code

Theoretically, email addresses can be validated using a regular expression. The only way to do so is to send an email and check the response. Even if you could validate an email address, there’s no way of knowing if this address is in fact currently in use.

Can I validate an email address in JavaScript?

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TLDR:
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<pre><code class="language-js">const isEmailValid = address =&gt; /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(address);

isEmailValid(&#x27;abcd@site.com&#x27;); // true
</code></pre>