function chunkArray<T>(arr: T[], size: number): T[][] {
  if(arr.length===0) return [];
  if(arr.length<=size) return [arr];
  let count_element=0;
  let arr_num=[];
  while(count_element<arr.length){
arr_num.push( arr.slice(count_element,count_element+size))
count_element+=size;
  }
  return arr_num;
}

// No modificar: necesario para evaluar el resultado.
export { chunkArray };