in lib/is.js [73:83]
(function () {
var identifier = '[a-z0-9\\_-]{1,100}';
def({
fn: 'youtube.name',
re: new RegExp('^' + identifier + '$', 'i')
});
def({
fn: 'youtube.url',
re: url('youtube\\.com\\/.+' + identifier)
});
})();