Registry / testing / eslint-config-fbjs

eslint-config-fbjs

library4.0.0jsnpmunverified

eslint-config-fbjs is an ESLint shareable config that mirrors Facebook's internal linting rules. Current stable version: 4.0.0. Released infrequently, this package provides a base configuration for JavaScript and React projects, with strict and non-strict variants. It requires peer dependencies: eslint 8.x, hermes-eslint, and plugins for babel, ft-flow, jsx-a11y, and react. Unlike many other configs, it purposely omits Facebook-specific custom rules and project-specific overrides, making it a lightweight starting point. Key differentiator: direct alignment with Facebook's open-source linting standards.

testing

npm install eslint-config-fbjs

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-CONFIG-FBJS

eslint-config-fbjs

testingjavascriptv4.0.0

Install

—

Import

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Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

eslint-config-fbjs

✓ extends: ['fbjs']

✗ extends: ['eslint-config-fbjs']

Use the shorthand 'fbjs' in extends array

eslint-config-fbjs/strict

✓ extends: ['fbjs/strict']

✗ extends: ['fbjs'] with overrides

Strict variant turns all warnings into errors

Plugin: babel

✓ plugins: ['babel']

✗ plugins: ['eslint-plugin-babel']

Shorthand plugin names are standard in ESLint config

Install peer dependencies and configure ESLint with the fbjs config using the extends field.

// Install dev dependencies npm install --save-dev eslint-config-fbjs eslint-plugin-babel eslint-plugin-ft-flow eslint-plugin-jsx-a11y eslint-plugin-react eslint hermes-eslint // Create .eslintrc.json { "extends": "fbjs", "plugins": ["babel", "ft-flow", "jsx-a11y", "react"], "rules": { "react/jsx-uses-vars": "error" } } // Lint a file npx eslint src/**/*.js

Debug

Known issues

breakingVersion 2.x dropped support for ESLint <6. Upgrade ESLint if using older versions.

fix

Update ESLint to >=6.0.0 and run npm install --save-dev eslint@^6

affects: >=2.0.0

deprecatedThe 'strict' config is now built-in; manual overrides to turn warnings to errors are unnecessary.

fix

Use extends: 'fbjs/strict' instead of custom rules overrides

affects: >=3.0.0

breakingPeer dependency hermes-eslint added in v4.0.0. Failing to install it causes eslint to fail.

fix

Run npm install --save-dev hermes-eslint@>=0.8.0

affects: >=4.0.0

gotchaInternal custom rules are not present in this config. Do not expect Facebook-specific rules to work.

fix

Add custom rules via plugins or overrides in your .eslintrc

affects: >=1.0.0

gotchaThis config uses eslint-plugin-ft-flow for Flow type linting; it does not support eslint-plugin-flowtype.

fix

Use eslint-plugin-ft-flow instead of deprecated eslint-plugin-flowtype

affects: >=4.0.0

Errors

Common errors & fixes

Error: Failed to load plugin 'babel' declared in 'fbjs': Cannot find module 'eslint-plugin-babel'

Missing peer dependency

fix

npm install --save-dev eslint-plugin-babel

Error: Failed to load config 'fbjs' to extend from.

Missing eslint-config-fbjs module

fix

npm install --save-dev eslint-config-fbjs

ESLint couldn't find the config "fbjs/strict". Check that the name of the config is correct.

Outdated package version (<3.0.0) that does not export 'fbjs/strict'

fix

Upgrade to eslint-config-fbjs@>=3.0.0

Upgrade

Version history

4.0.0latest on npm

Audit

Dependencies

eslintrequiredpeer dependency for ESLint

hermes-eslintrequiredpeer dependency for Hermes parser

eslint-plugin-babelrequiredpeer dependency for Babel support

eslint-plugin-ft-flowrequiredpeer dependency for Flow type checking

eslint-plugin-jsx-a11yrequiredpeer dependency for accessibility

eslint-plugin-reactrequiredpeer dependency for React rules

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/facebook/fbjs ↗

packagehttps://www.npmjs.com/package/eslint-config-fbjs ↗