validarCPFCNPJ

function validarCPFouCNPJ (valor){
  valor = String(valor).replace(/[^0-9]/g,"").padStart("0",14).substr(0,14);
  let cnpj = valor.split("");
  let cpf = valor.substr(-11).split("");
  let mascaras={};
  mascaras.cnpj = [6,5,4,3,2,9,8,7,6,5,4,3,2];
  mascaras.cpf = [11,10,9,8,7,6,5,4,3,2];
  let validar = function (cpfcnpj){
    let tipo = (cpfcnpj.length>11)?"cnpj":"cpf";
    let dv = cpfcnpj.slice(-2);
    let calculateDv = dv.map((v,i)=>((11-cpfcnpj.slice(0,-2+i).map((e,b,c)=>mascaras[tipo][b+1-i]*e).reduce( (a, b) => a + b)%11)+"").substr(-1));
    return  calculateDv.join() === dv.join();
  }
  return validar(cpf) ||validar(cnpj);
}