Basic Algorithm Scripting - Slice and Splice

JavaScript
1

Tell us what’s happening:
I don’t really have a problem on this topic but I just want to ask if this code is fine? It works but I’m not satisfied, I don’t know because the solution is different from mine haha lol.

Your code so far

function frankenSplice(arr1, arr2, n) {
  let newArr = [...arr2]
  newArr.splice(n,0,...[...arr1]);
  return newArr;
}

console.log(frankenSplice([1, 2, 3], [4, 5, 6], 1));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.95

Challenge: Basic Algorithm Scripting - Slice and Splice

Link to the challenge:

3

Hello, sir, thank you for replying. On that part, without the first spread operator, it would be a nested array like this [ 4, [1,2,3], 5, 6 ]. So I think I should really put that operator. But then I think it was not a best practice or maybe it’s acceptable.

4

Without those spread operator it would look like this [ 4, [[1,2,3]], 5, 6 ]

6

Ohhh, that’s why. It works and look fine with ...arr1 only. I got the wrong idea of spreading the value. Thank you!

8

Yeah, I was just confused that I also put a bracket on an array. But to think that my code works without loops works fine. Thank you!

9

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