Basic Algorithm Scripting: Chunky Monkey help please

Curriculum Help
1 
function chunkArrayInGroups(arr, size) {
  // Break it up.
  let subarray = [];
  let result = [];
  for (let i = 0;i < arr.length;i+=size) {
    subarray = [];
    subarray.push(arr.slice(i,(i+size)));
    result.push(subarray);
  }
  return result;
}

chunkArrayInGroups(["a", "b", "c", "d"], 2);

in the console.log I am getting the result but why is it not passing the test? Help please

2

try looking at it with the browser console, or run it on repl.it
(or you can also use console.log(JSON.stringify(...)))
(or this tool: http://pythontutor.com/javascript.html )

if you don’t see the issue with that return here