Write a JavaScript program to extract out the values at the specified indexes from a specified array

const pull_at_Index = (arr, pullArr) => {
  let removed = [];
  let pulled = arr
    .map((v, i) => (pullArr.includes(i) ? removed.push(v) : v))
    .filter((v, i) => !pullArr.includes(i));
  arr.length = 0;
  pulled.forEach(v => arr.push(v));
  return removed;
};
let arra1 = ['a', 'b', 'c', 'd', 'e', 'f'];
console.log(pull_at_Index(arra1, [1, 3]));
let arra2 =  [1, 2, 3, 4, 5, 6, 7];
console.log(pull_at_Index(arra2, [4]));