"Opinion is the medium between knowledge and ignorance." - Plato

cassidoo Challenge 5-1

function sortWithStack(arr) {
  var stack = [], 
      current = null;
    
  while (arr.length) {
    current = arr.pop();
        
    while (stack.length && stack[stack.length - 1] > current) {
      arr.push(stack.pop());
    }
        
    stack.push(current);
  }
    
  return stack;
}

sortWithStack([1, 3, 5, 4, 2]);