Untitled

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
var cpf    = [];
var peso1  = [10,9,8,7,6,5,4,3,2];
var peso2 = [11,10,9,8,7,6,5,4,3,2];
var dv1;  //Primeiro digito calc.
var dv2;  //Segundo digito calc.
var sum,resto;

var cpfu = prompt("Digite o seu cpf sem . e -");
cpf[0] = Number(cpfu[0]);
cpf[1] = Number(cpfu[1]);
cpf[2] = Number(cpfu[2]);
cpf[3] = Number(cpfu[3]);
cpf[4] = Number(cpfu[4]);
cpf[5] = Number(cpfu[5]);
cpf[6] = Number(cpfu[6]);
cpf[7] = Number(cpfu[7]);
cpf[8] = Number(cpfu[8]);
cpf[9] = Number(cpfu[9]);
cpf[10] = Number(cpfu[10]);

sum = cpf[0]*peso1[0] + cpf[1]*peso1[1] +
      cpf[2]*peso1[2] + cpf[3]*peso1[3] +
      cpf[4]*peso1[4] + cpf[5]*peso1[5] +
      cpf[6]*peso1[6] + cpf[7]*peso1[7] +
      cpf[8]*peso1[8];
resto = sum % 11;

if(resto < 2){
  dv1 = 0;
}else{
  dv1 = 11 - resto;
}
sum = cpf[0]*peso2[0] + cpf[1]*peso2[1] +
      cpf[2]*peso2[2] + cpf[3]*peso2[3] +
      cpf[4]*peso2[4] + cpf[5]*peso2[5] +
      cpf[6]*peso2[6] + cpf[7]*peso2[7] +
      cpf[8]*peso2[8] + cpf[9]*peso2[9];
resto = sum % 11;

if(resto < 2){
  dv2 = 0;
}else{
  dv2 = 11 - resto;
}

if(dv1 == cpf[9] && dv2 == cpf[10]){
  alert("CPF VALIDO");
}else{
  alert("CPF INVALIDO");
}
</script>


<script id="jsbin-source-javascript" type="text/javascript">var cpf    = [];
var peso1  = [10,9,8,7,6,5,4,3,2];
var peso2 = [11,10,9,8,7,6,5,4,3,2];
var dv1;  //Primeiro digito calc.
var dv2;  //Segundo digito calc.
var sum,resto;

var cpfu = prompt("Digite o seu cpf sem . e -");
cpf[0] = Number(cpfu[0]);
cpf[1] = Number(cpfu[1]);
cpf[2] = Number(cpfu[2]);
cpf[3] = Number(cpfu[3]);
cpf[4] = Number(cpfu[4]);
cpf[5] = Number(cpfu[5]);
cpf[6] = Number(cpfu[6]);
cpf[7] = Number(cpfu[7]);
cpf[8] = Number(cpfu[8]);
cpf[9] = Number(cpfu[9]);
cpf[10] = Number(cpfu[10]);

sum = cpf[0]*peso1[0] + cpf[1]*peso1[1] +
      cpf[2]*peso1[2] + cpf[3]*peso1[3] +
      cpf[4]*peso1[4] + cpf[5]*peso1[5] +
      cpf[6]*peso1[6] + cpf[7]*peso1[7] +
      cpf[8]*peso1[8];
resto = sum % 11;

if(resto < 2){
  dv1 = 0;
}else{
  dv1 = 11 - resto;
}
sum = cpf[0]*peso2[0] + cpf[1]*peso2[1] +
      cpf[2]*peso2[2] + cpf[3]*peso2[3] +
      cpf[4]*peso2[4] + cpf[5]*peso2[5] +
      cpf[6]*peso2[6] + cpf[7]*peso2[7] +
      cpf[8]*peso2[8] + cpf[9]*peso2[9];
resto = sum % 11;

if(resto < 2){
  dv2 = 0;
}else{
  dv2 = 11 - resto;
}

if(dv1 == cpf[9] && dv2 == cpf[10]){
  alert("CPF VALIDO");
}else{
  alert("CPF INVALIDO");
}</script></body>
</html>