181898

function solution(arr, idx) {
  return arr.indexOf(1, idx);
}

function solution(arr, idx) {
  return arr.findIndex((v, i) => idx <= i && v === 1);
}

function solution(arr, idx) {
  for (let i = idx; i < arr.length; i++) {
    const cur = arr[i];
    if (cur === 1) return i;
  }
  return -1;
}