ESLint config for Chart.js projects

0.3.0 verified Sat Apr 25 auth: no javascript

Shareable ESLint configuration from the Chart.js team. v0.3.0 switches indent from tabs to 2 spaces and enables ES6 features. Release cadence is low; used primarily for maintaining Chart.js itself. Differentiator: official config that matches Chart.js coding style, including spacing, brace style, and ES6 enforcement. Supports extending in ESLint config files.

Common errors

error Error: Cannot find module 'eslint-config-chartjs' ↓

cause Package not installed or missing from devDependencies.

fix

Run 'npm install --save-dev eslint-config-chartjs'.

error Configuration for rule "no-unused-vars" is invalid: Value "warn" expects an object. ↓

cause Overriding rules incorrectly in .eslintrc.

fix

Ensure rule values are valid; see ESLint docs for schema.

Warnings

breaking Indent rule changed from tab to 2 spaces in v0.3.0. ↓

fix Update your codebase to use 2-space indentation, or override the indent rule in your ESLint config.

deprecated This package is superseded by modern ESLint flat config; consider using eslint-config-chartjs's flat config version if available. ↓

fix Migrate to eslint.config.js format; check for updated package.

gotcha Extends field in .eslintrc expects string 'chartjs', not the package name 'eslint-config-chartjs'. ↓

fix Set extends: 'chartjs' (without the 'eslint-config-' prefix).

gotcha Config does not include React or JSX rules; do not use for React projects expecting JSX support. ↓

fix Extend additional configs for React (e.g., eslint-plugin-react).

Install

npm install eslint-config-chartjs

yarn add eslint-config-chartjs

pnpm add eslint-config-chartjs

Imports

config

wrong

// Wrong: using require() in .eslintrc\nmodule.exports = { extends: ['chartjs'] };

correct

// In .eslintrc.\n{"extends": "chartjs"}

ESLint configs are used via extends field, not imported directly.

setParserOptions
wrong
```
const setParserOptions = require('eslint-config-chartjs');
```
correct
```
import { setParserOptions } from 'eslint-config-chartjs';
```
Actually, there is no setParserOptions export; this is a shareable config only. No direct functions are exported.

Quickstart

Install the shareable config, then extend it in your ESLint config file.

npm install --save-dev eslint-config-chartjs