If the index is greater than arr length it should go back round again

Question

function getAnyItem(arr, position) {
  if (position > arr.length) {
   return position = arr[0] ;
  }
  let index = arr[position];
  return index;

 }

I am really struggling on finding a way to go back round an array without using loops.Above is what I have written so far, all I get it undefined. Any help would be much appreciated as I am new to coding.

getItem(['a','b','c'], 10) should return 'b'

`return arr[position % arr.length]` – Robin Zigmond Sep 30 '20 at 20:53 — Robin Zigmond, Sep 30 '20 at 20:53

score 3 · Accepted Answer · answered Sep 30 '20 at 20:53

3

You could take the remainder operator % with the length of the array

function getItem(arr, position) {
   return arr[position % arr.length];
}

console.log(getItem(['a','b','c'], 10)); // 'b'

answered Sep 30 '20 at 20:53

Nina Scholz

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If the index is greater than arr length it should go back round again

1 Answers1