Registry / testing / eslint-plugin-ember

eslint-plugin-ember

library13.1.0jsnpmunverified

ESLint plugin providing a comprehensive set of lint rules for Ember.js applications, currently at v13.1.0 (as of April 2026). Released under the Ember CLI organization with frequent minor/patch releases (multiple per year). Supports both flat config (ESLint >=8.40) and legacy .eslintrc. Requires Node >=20.19. Key differentiator: the de facto standard linter for Ember, includes rules for both JavaScript/TypeScript and Handlebars templates (gjs/gts) via ember-eslint-parser, with built-in presets for recommended, gjs, and gts configurations. Actively maintained with community contributions.

testing

npm install eslint-plugin-ember

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-PLUGIN-EMBE

eslint-plugin-ember

testingjavascriptv13.1.0

Install

—

Import

—

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.

plugin (default)

✓ import eslintPluginEmber from 'eslint-plugin-ember'

✗ const eslintPluginEmber = require('eslint-plugin-ember')

ESM-only since v13? Actually this package ships both CJS and ESM; require() still works. But for flat config, ESM import is recommended.

configs/recommended

✓ import recommended from 'eslint-plugin-ember/configs/recommended'

✗ require('eslint-plugin-ember/configs/recommended')

Use ESM import for flat config. CJS require is still possible but deprecated in v13+.

rules

✓ import { rules } from 'eslint-plugin-ember'

✗ import * as emberPlugin from 'eslint-plugin-ember'; const rules = emberPlugin.rules

Named export 'rules' is available as an object of all rule definitions.

configs/recommended-gts

✓ import gtsConfig from 'eslint-plugin-ember/configs/recommended-gts'

✗ require('eslint-plugin-ember/configs/recommended-gts')

For .gts files; must be used with ember-eslint-parser.

Minimal flat config setup with recommended rules and gjs/gts override example.

// 1. Install // npm install --save-dev eslint-plugin-ember // 2. eslint.config.js (flat config) import eslintPluginEmberRecommended from 'eslint-plugin-ember/configs/recommended'; export default [ ...eslintPluginEmberRecommended, { rules: { 'ember/no-replace-test-comments': 'error', }, }, ]; // 3. For gjs/gts files, also install: // npm install --save-dev ember-eslint-parser @typescript-eslint/parser // Then add overrides: // { // files: ['**/*.gjs'], // parser: 'ember-eslint-parser', // ...eslintPluginEmberRecommended, // ...require('eslint-plugin-ember/configs/recommended-gjs'), // }

Debug

Known issues

breakingv13 drops support for ESLint < 8.40 and replaces deprecated ESLint context methods, breaking compatibility with older ESLint versions.

fix

Upgrade ESLint to >= 8.40 and ensure Node >= 20.19.

affects: >=13.0.0

breakingv13.0.0 upgrades ember-eslint-parser to 0.8.0, which may require parser configuration changes for gjs/gts files.

fix

Review ember-eslint-parser changelog; update parser options if using custom parser settings.

affects: >=13.0.0

deprecatedThe legacy .eslintrc config format (extends, plugins) is deprecated in favor of flat config (eslint.config.js).

fix

Migrate to eslint.config.js flat config as shown in the README.

affects: >=13.0.0

gotchaParsers cannot be overwritten in overrides; gjs/gts must use 'ember-eslint-parser' in separate override blocks.

fix

Use separate override blocks for .gjs/.gts files and set parser: 'ember-eslint-parser' only in those blocks.

affects: >=0.0.0

gotchaRule 'no-undef' in gjs/gts templates will flag template variables not in JS scope; need to disable or configure.

fix

Use eslint-disable comments in templates or configure globals.

affects: >=0.0.0

gotchaWhen using TypeScript (ts/gts), both @typescript-eslint/parser and ember-eslint-parser may be needed; .ts files require ember-eslint-parser if they import .gts files.

fix

Set parser: 'ember-eslint-parser' for .ts files as well if they import .gts.

affects: >=0.0.0

Errors

Common errors & fixes

ESLint couldn't find the config 'plugin:ember/recommended'.

The plugin is not installed or not properly loaded in a flat config environment.

fix

Use import recommended from 'eslint-plugin-ember/configs/recommended' and spread it in eslint.config.js.

Parsing error: Cannot find module 'ember-eslint-parser'

The ember-eslint-parser package is not installed, but required for .gjs/.gts files.

fix

npm install --save-dev ember-eslint-parser

Error: ESLint configuration in .eslintrc is deprecated. Use eslint.config.js instead.

Legacy .eslintrc format is no longer supported with ESLint 9+.

fix

Migrate to eslint.config.js flat config.

TypeError: context.getSource() is not a function

ESLint 10 removed deprecated context methods; v13 uses new API, but older plugin version might still call old methods.

fix

Update plugin to v13+ and ESLint to >=8.40.

Upgrade

Version history

13.1.0latest on npm

Audit

Dependencies

@typescript-eslint/parseroptionalRequired peer dependency for parsing TypeScript (and gts) files

eslintrequiredPeer dependency; must be >= 8.40.0 for v13 compatibility

Agent activity

6 hits · last 30 days

node

Resources

githubhttps://github.com/ember-cli/eslint-plugin-ember ↗

packagehttps://www.npmjs.com/package/eslint-plugin-ember ↗