Slice and Splice

JavaScript
1 
//This is what I tried to do....

function frankenSplice(arr1, arr2, n) {
  let newArr =  arr2.slice()
  return newArr.splice(n,0,...arr1);
  //using return on this line doesn't work
}

//-----------------------------------------------

//This is the solution 2 in the Get a Hint! section
function frankenSplice(arr1, arr2, n) {
  let localArr = arr2.slice();
  localArr.splice(n, 0, ...arr1);
  return localArr;
  //using return this time after splice works!! Why??
}
frankenSplice([1, 2, 3], [4, 5, 6], 1);

I tried to do the same as in the solution buy I tried to return the code and it didn’t work but when I saw the solution and the code worked when using return after the method has been applied.
Using return in different question with a long line of methods applied to array or strings worked in other questions but not in this one .
Could anyone tell me why??

2

Please post a link to the challenge.

Also note that splice returns an array containing the deleted elements. (Was that what you were trying to return? The deleted elements?)

3

ok i got what i did wrong

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