faker-br/lib/locales/pt_BR/br/document/cnpj.js

Brazilian Faker Data Generator - Gerador de dados para o Brasil. Fork do faker para pt_BR com extensão para CNPJ, CPF, RG, etc.

/**
 * Generates a valid CNPJ
 * @return {String} The generated CNPJ
 */

const  strip = (cnpj) =>  (cnpj || "").toString().replace( /[^\d]/g , "");


const digit = numbers => {
    let index = 2

    const reverse = numbers
        .split('')
        .reduce((buffer, number) => [+number].concat(buffer), [])

    const sum = reverse.reduce((buffer, number) => {
        buffer += number * index
        index = index === 9 ? 2 : index + 1
        return buffer
    }, 0)

    const mod = sum % 11

    return mod < 2 ? 0 : 11 - mod
}

/**
 * Formats a CNPJ value
 * @param {String|Number} cnpj The CNPJ to be formatted
 * @return {String} The formatted CNPJ
 */

const format = cnpj =>  strip(cnpj).replace(/^(\d{2})(\d{3})(\d{3})(\d{4})(\d{2})$/, "$1.$2.$3/$4-$5");


/**
 * Remove non digit characters from CNPJ
 * @param {String|Number} value The CNPJ value to be cleaned
 */
const clean = (value = '') => value.toString().replace(/[^\d]/g, '')


const generate = (opts = {} ) => {
    let cnpj = ''
    let i = 12

    while (i--) {
        cnpj += Math.floor(Math.random() * 9)
    }

    cnpj += digit(cnpj)
    cnpj += digit(cnpj)

    if(opts.format){
        cnpj = format(cnpj)
    }

    return cnpj
}


module.exports = generate;