[Vlasenko Fedor]

Array.prototype.unused = function(arr){
		var digital = this.join();
		return arr.filter(function(value){
				return digital.indexOf(value) === -1;
		});
};
alert([32, 90, 44].unused([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]));