Validate Multiple Emails Comma Separated with javascript

Question

I want to validate a string which can be an email or multiple emails separated by commas.

For example:

bill.gates@hotmail.com -> TRUE
bill -> FALSE

Answer 1

I used validationEngine and underscore.js to do this:

function validateEmail(field, rules, i, options) {
if (!_.all(field.val().split(","), function(candidate) { return $.trim(candidate).match(options.allrules.email.regex); } ))
    return options.allrules.email.alertText;
}

And then decorated my form field with: