Slice and Splice - what's wrong here

JavaScript
1

Though I know how to solve this with the for loop I avoided it and wanted to know what’s wrong with the solution I coded.

Appreciate any feedback.


function frankenSplice(arr1, arr2, n) {
  let i;
  Number.isInteger(n) ? i = n : i = arr2.indexOf(n);
  let arr3 = arr2.slice();
  arr3.splice(i,0,arr1);
  return arr3;
}
console.log(frankenSplice(["claw", "tentacle"], ["head", "shoulders", "knees", "toes"], 2));
console.log(arr3);

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Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/slice-and-splice

2

You need to return a one-dimensional array. You are currently injecting an array as an element into another array, resulting in a 2D array:

1 Like
3

Thanks Ariel, saw it almost the same time you replied a few days back. :slight_smile: