export function ValidarCPF(cpf) {

    let Soma;
    let Resto;
    Soma = 0;
    if (cpf == "00000000000") return false;

    for (let i=1; i<=9; i++) Soma = Soma + parseInt(cpf.substring(i-1, i)) * (11 - i);
    Resto = (Soma * 10) % 11;

    if ((Resto == 10) || (Resto == 11))  Resto = 0;
    if (Resto != parseInt(cpf.substring(9, 10)) ) return false;

    Soma = 0;
    for (let i = 1; i <= 10; i++) Soma = Soma + parseInt(cpf.substring(i-1, i)) * (12 - i);
    Resto = (Soma * 10) % 11;

    if ((Resto == 10) || (Resto == 11))  Resto = 0;
    if (Resto != parseInt(cpf.substring(10, 11) ) ) return false;
    return true;

}