var log = function(m){console.log.apply(console, arguments)} function Link(href) {this.href=href;} Link.prototype.attr=function(name){if (this.hasOwnProperty(name)) return this[name];} // ----------------- var i = new Link('http://youtube.com/c/somevideo/'); log( i.attr('href') != 'news' || i.attr('href') != 'http://youtube.com/c/somevideo/' );