Validating Email Addresses

Here is a quickie JavaScript function that validates an email address using a regular expression — with special thanks to HXS for fine-tuning the expression.

function checkEmail(userEmail) {
	var emailExpression = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
	if (userEmail.match(emailExpression)) {
		return true;
	} else {
		return false;
	}
}

About this entry

You’re currently reading “Validating Email Addresses,” an entry on Wercshop

Published:
06.26.07 / 10pm
Category:
JavaScript, Programming, Tips & Tricks, Web