This component is available on GitHub.

Stimulus Character Counter

A Stimulus controller that counts the number of characters in any input fields.


$ yarn add stimulus-character-counter

And use it in your JS file:

// Probably in app/javascript/controllers/index.js

import { Application } from 'stimulus'
import CharacterCounter from 'stimulus-character-counter'

const application = Application.start()
application.register('character-counter', CharacterCounter)

πŸ‘€ Demo

See demo β†’


In your view:

<div data-controller="character-counter">
  <textarea data-character-counter-target="input"></textarea>

    There are
    <strong data-character-counter-target="counter"></strong> characters in this textarea.

You can use it in countdown mode, add the correct value and a maxlength attribute on the input/textarea field:

<div data-controller="character-counter" data-character-counter-countdown-value="true">
  <textarea data-character-counter-target="input" maxlength="280"></textarea>

    There are
    <strong data-character-counter-target="counter"></strong> characters remaining.

πŸ›  Configuration

data-character-counter-countdown-valueundefinedActivate the countdown mode.βœ…

πŸŽ› Extending Controller

You can use inheritance to extend the functionality of any Stimulus component:

import CharacterCounter from 'stimulus-character-counter'

export default class extends CharacterCounter {
  connect() {
    console.log('Do what you want here.')

    this.count // Will return the number of characters in the input/texterea.

This controller will automatically have access to targets defined in the parent class.

If you override the connect, disconnect or any other methods from the parent, you'll want to call super.method() to make sure the parent functionality is executed.

β˜•οΈ Sponsors

Stimulus Component is an MIT licensed open source project and completely free to use. However, the amount of effort needed to maintain and develop new features for the project is not sustainable without proper financial backing. You can support Stimulus Components development on Github Sponsors. πŸ™

πŸ‘· Contributing

Do not hesitate to contribute to the project by adapting or adding features ! Bug reports or pull requests are welcome.

Don’t forget to drop a 🌟 on Github to support the project.

πŸ“ License

This project is released under the MIT license.