jQuery jAM, Season 6

	 
My first function
var array =[];
function range1(start,end){
  for(var i = start; i <= end; i =i+1)
  		array.push(i);
  		return array;
}

function range2(start,end,step){
  if(step == null) step = 1;
	var array=[];

if(step >0){
	 for(var i = start; i<= end; i+=step)
	 	array.push(i);
		}else{
  	for(var i = start; i>= end; i += step)
  		array.push(i);   
  	}
	return array;
}


function sum(array){
   var num = 0
   for(var i = 0; i <= array.length-1; i=i+1)
   num = array[i] + num;
   return num ; 
}


console.log(range1(1, 10))
// → [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
console.log(range2(5, 2, -1));
// → [5, 4, 3, 2]
console.log(sum(range2(1, 10)));
// → 55