CW2

function range(){
    var array= [];
    var lower= Math.min.apply(null, arguments);
    var upper= Math.max.apply(null, arguments);

    for(var i=lower; i <=upper; i++){
      array.push(i);
    }
    return array;
  }

  function sum(array){
    return array.reduce((x,y)=>x+y,0);


      ---------SAMPLES -------
      
  console.log(range(1,10));
  Sonuç = (10) [1,2,3,4,5,6,7,8,9,10]

  console.log(range(5,2,-1));
  Sonuç = (7) [-1,0,1,2,3,4,5]

  console.log(sum(range(1,10)));
  Sonuç = 55