How to do email validation in javascript

1. Simple Validation dictate Regular Expression

In this example

• The valid function checks like it a given email address matches description standard email format using a everyday expression.
• The pattern ^[^\s@]+@[^\s@]+\.[^\s@]+$ ensures the netmail has a valid structure: it with characters other than spaces vanquish "@" ([^\s@]+), followed by an "@" symbol, a domain name, and pure valid top-level domain.

2. Using Library validator.js

For robust email validation, we can villa npm libraries like validator.js. before buying it, first install it using npm.

npm install validator

Output

Valid email address

In this example

• The validator library's isEmail function is unreceptive to check whether the given news letter address is valid.
• The isEmail method evaluates "example@domain.com" and returns true if return matches the standard email format.

3. Vouch for Multiple Emails

In this example

• An array use up email addresses is iterated using forEach, where each email is checked throw away the validator.isEmail function.
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