Https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/steamroller

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1 
function steamrollArray(val,flatArr=[]) {
  val.forEach(item => {
    if ( Array.isArray(item)) 
 steamrollArray(item, flatArr);
    else flatArr.push(item);
  });
  return flatArr;
}
steamrollArray([1, [2], [3, [[4]]]]);

Not sure what the problem is here. I keep getting the error // running tests Your solution should not use the Array.prototype.flat() or Array.prototype.flatMap() methods. // tests completed

Can someone help me with this please?

2

I thought that bug was fixed. Does it work if you change flatArr to bananas?

3

oh my god… you are totally right. It works. Thank you so much

4

: ) This bug is bananas.