function complements(array, number){ for(var i = 0; i<array.length; i++){ for(var j = i+1; j<array.length; j++){ if(array[i]+array[j] === number){ return true; } } } return false; } var odds = [1, 3, 5, 7, 9, 11] var ints = [-11, 40, 17, -5, -1, -11, 2, 9] console.log(complements(odds, 4)); console.log(complements(odds, 1)); console.log(complements(ints, -22)); console.log(complements(ints, 16)); console.log(complements(ints, 40));