npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

clabe-js

v1.3.0

Published

Validate, generate and resolve bank names for Mexican CLABE numbers.

Readme

test codecov

clabe-js

Librería para validar, generar y resolver el banco de un número CLABE en México (https://es.wikipedia.org/wiki/CLABE). Mantiene paridad funcional con clabe-python.

Incluye tipos TypeScript publicados en lib/index.d.ts.

Instalación

npm install clabe-js

Uso

const clabe = require('clabe-js');

clabe.computeControlDigit('00200000000000000');
// => '8'

clabe.validateClabe('002000000000000008');
// => true

clabe.getBankName('002000000000000008');
// => 'Banamex'

clabe.getBankName('999000000000000000');
// => null  (código no registrado)

clabe.getBankName(null);
// => null  (entrada inválida)

getBankName vs getBankNameOrThrow

A partir de la versión 1.3.0, getBankName no lanza excepciones: devuelve null si la CLABE es nula/vacía/no-string o si el código de banco no está registrado. Esto simplifica el caso muy común de renderizar UI a partir de campos opcionales.

Si necesitas el comportamiento estricto previo (lanzar Error cuando el código no existe), usa getBankNameOrThrow:

try {
  clabe.getBankNameOrThrow('999000000000000000');
} catch (err) {
  // Error: Ningún banco tiene este código 999
}

Generar CLABEs

const clabes = clabe.generateNewClabes(5, '002000');
// => 5 CLABEs válidas que empiezan con '002000'

Registrar / remover bancos en runtime

clabe.addBank('40999', 'Test Bank');
clabe.getBankName('999000000000000000'); // => 'Test Bank'

clabe.removeBank('40999');
clabe.getBankName('999000000000000000'); // => null

addBank valida que bankCodeBanxico sea un string de exactamente 5 dígitos y que bankName no sea vacío después de trim().

Desarrollo

npm install
npm test
npm run lint