function groupByLength(words: string[]): Record<number, string[]> {
  const test=words.reduce((acc,value)=>{
    if(!acc[value.length]) acc[value.length]=[]
    
    acc[value.length].push(value)

    return acc
  },{})
  return test;
}

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