@mquiuqui/doc-validator/dist/cpf.js

Validador de documentos brasileiros (CPF, CNPJ, etc)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isValidCPF = isValidCPF;
exports.formatCPF = formatCPF;
function isValidCPF(cpf) {
    cpf = cpf.replace(/[^\d]+/g, '');
    if (cpf.length !== 11 || /^(\d)\1+$/.test(cpf))
        return false;
    const calcCheckDigit = (base, factor) => base.split('').reduce((sum, digit) => sum + parseInt(digit) * factor--, 0);
    const base = cpf.slice(0, 9);
    const digit1 = (calcCheckDigit(base, 10) * 10) % 11 % 10;
    const digit2 = (calcCheckDigit(base + digit1, 11) * 10) % 11 % 10;
    return cpf.endsWith(`${digit1}${digit2}`);
}
function formatCPF(cpf) {
    const digits = cpf.replace(/[^\d]+/g, '');
    if (digits.length !== 11)
        return cpf;
    return `${digits.slice(0, 3)}.${digits.slice(3, 6)}.${digits.slice(6, 9)}-${digits.slice(9, 11)}`;
}