January 30, 2026 - Compatibility utilities for ESLint. Latest version: 2.0.2, last published: a month ago. Start using @eslint/compat in your project by running `npm i @eslint/compat`. There are 575 other projects in the npm registry using @eslint/compat.

May 9, 2024 - One of the benefits of the new configuration system is that it allows us the ability to patch plugins and configs that haven’t yet been updated by their maintainers. We know it can be frustrating to migrate to ESLint v9.0.0 and have your configuration not work, and that’s why we’re committed to providing packages like @eslint/eslintrc and @eslint/compat to help aid the transition.

January 23, 2026 - // eslint.config.mjs import compat from "eslint-plugin-compat"; export default [compat.configs["flat/recommended"]];

import { defineConfig } from "eslint/config"; import { FlatCompat } from "@eslint/eslintrc"; import path from "path"; import { fileURLToPath } from "url"; // mimic CommonJS variables -- not needed if using CommonJS const __filename = fileURLToPath(import.meta.url); const __dirname = path.dirname(__filename); const compat = new FlatCompat({ baseDirectory: __dirname, }); export default defineConfig([ // mimic ESLintRC-style extends ...compat.extends("eslint-config-my-config"), ]);

Provides an API for ESLint custom rules that is compatible with the latest ESLint even when using older ESLint.

September 28, 2024 - The extends() method in FlatCompat allows you to include configurations that use CommonJS and other legacy formats. When you call compat.extends('eslint-config-airbnb-base'), it internally uses the ConfigArrayFactory to load and translate the specified config.

reportUnusedDisableDirectives - A severity string indicating if and how unused disable and enable directives should be tracked and reported. For legacy compatibility, true is equivalent to "warn" and false is equivalent to "off".

2 weeks ago - Learn how to use and configure the ESLint plugin to catch common issues and problems in a Next.js application.

Check the browser compatibility of your code. Contribute to amilajack/eslint-plugin-compat development by creating an account on GitHub.

I'm also interested in using the ESLint compatibility plugin, eslint-plugin-compat, which will warn you if you're using JS that is not compatible with the browsers you are targeting (the ESLint plugin also refers to the .browserslistrc file).

Add compat to the plugins section of your configuration. Then configure the desired rules in the rules sections. ... { "parser": "babel-eslint", "plugins": ["@applitools/eslint-plugin-compat"], "rules": { "@applitools/compat/no-deprecated": "error", "@applitools/compat/valid-api": "error", "@applitools/compat/no-document-query": "error" } }

We found that eslint-plugin-compat demonstrates a positive version release cadence with at least one new version released in the past 3 months.

Check the browser compatibility of your code. Contribute to amilajack/eslint-plugin-compat development by creating an account on GitHub.

If you want to include patterns from a .gitignore file or any other file with gitignore-style patterns, you can use includeIgnoreFile utility from the @eslint/compat package.

March 7, 2017 - 2. If ESLint is installed locally, then it's likely that the plugin isn't installed correctly. Try reinstalling by running the following: npm i eslint-plugin-compat@latest --save-dev If you still can't figure out the problem, please stop by https://gitter.im/eslint/eslint to chat with the team.

Check the browser compatibility of your code. Contribute to amilajack/eslint-plugin-compat development by creating an account on GitHub.

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May 13, 2025 - Provides an API for ESLint custom rules that is compatible with the latest ESLint even when using older ESLint.