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

@tadashi/mask

v4.5.0

Published

The simple and tiny script for input mask

Readme

Mask

NPM version Build Status Coverage Status

The simple and tiny script for input mask.

Install

$ npm i @tadashi/mask

Mask pattern

| Token | Accepts | | ----- | ------------------------ | | 9 | Digit (0-9) | | A | Letter or digit | | S | Letter (a-z, A-Z) | | other | Literal (kept as masked) |

Usage

The mask can be set via the data-mask attribute:

<input id="telefone" type="text" data-mask="(99) 9-9999-9999">

<script type="module">
	import Mask from 'https://unpkg.com/@tadashi/mask@{version}/src/mask.js'

	const maskTelefone = new Mask(document.querySelector('#telefone'))
</script>

Or via the mask option, using npm:

import Mask from '@tadashi/mask'

const mask = new Mask(input, { mask: 'SSS-9999', init: true })

The mask option also accepts an array of patterns — it switches to the second pattern when the value outgrows the first (e.g. CPF → CNPJ):

const mask = new Mask(input, {
	mask: ['999.999.999-99', '99.999.999/9999-99'],
})

Or a function that receives the input element and returns the pattern:

const mask = new Mask(input, {
	mask: (el) => (el.value.replaceAll(/\D/g, '').length > 11 ? '99.999.999/9999-99' : '999.999.999-99'),
})

See more examples here: https://codepen.io/lagden/pen/XzLYJE?editors=1010

Options

| Option | Type | Default | Description | | ----------------- | ----------------------- | ----------- | --------------------------------------------------------------- | | mask | string \| array \| fn | undefined | The mask pattern — falls back to the data-mask attribute | | keyEvent | string | 'input' | The event that triggers masking (e.g. 'input', 'keyup') | | init | boolean | false | Apply the mask to the current value on instantiation | | triggerOnBlur | boolean | false | Also apply the mask on blur | | triggerOnDelete | boolean | false | Also apply the mask on delete (backspace/delete) | | dynamicDataMask | boolean | false | Watch the data-mask attribute and re-apply the mask on change |

API

Static

  • Mask.core(value, mask) — masks a string and returns the result. Works without the DOM (Node.js included).
  • Mask.data(input) — returns the Mask instance bound to the input, or null.
  • Mask.masking(value, mask) — deprecated alias of Mask.core.
Mask.core('ABC12', 'SSS-9999') // => 'ABC-12'

Instance

  • getUnmasked() — returns the input value without the mask literals.
  • destroy() — removes listeners, unbinds the instance and restores the unmasked value.

Team

Donate ❤️

  • BTC: bc1q7famhuj5f25n6qvlm3sssnymk2qpxrfwpyq7g4

License

MIT © Thiago Lagden