@wordpress/url/src/is-email.js

WordPress URL utilities.

const EMAIL_REGEXP = /^(mailto:)?[a-z0-9._%+-]+@[a-z0-9][a-z0-9.-]*\.[a-z]{2,63}$/i;

/**
 * Determines whether the given string looks like an email.
 *
 * @param {string} email The string to scrutinise.
 *
 * @example
 * ```js
 * const isEmail = isEmail( 'hello@wordpress.org' ); // true
 * ```
 *
 * @return {boolean} Whether or not it looks like an email.
 */
export function isEmail( email ) {
	return EMAIL_REGEXP.test( email );
}