--description--

Declare an empty array named countArray inside the countup function just above your if statement.

This array will store the value of number at each function call.

--hints--

You should declare an empty array named countArray.

assert.match(countup.toString(), /(let|const|var)\s+countArray\s*=\s*\[\s*\]/);

--seed--

--seed-contents--

function countup(number) {
--fcc-editable-region-- 
  
--fcc-editable-region--
  if (number < 1) {
    return [];
  }
}