eslint-config-tc

library28.0.3jsnpmunverified

An ESLint shareable flat config for JavaScript projects, providing a comprehensive set of linting rules including style, import, Jest, and unicorn plugins. Current stable version is 28.0.3, requiring Node >=22, ESLint 10, and flat config. Key differentiators: integrates Prettier formatting, updates peer deps frequently, and drops legacy eslintrc support. Released irregularly with breaking changes on major bumps; v28 drops Node 20 and switches to flat config only.

testing

npm install eslint-config-tc

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-CONFIG-TC

eslint-config-tc

testingjavascriptv28.0.3

Install

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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.

default (config array)

✓ import tcConfig from 'eslint-config-tc';

✗ const tcConfig = require('eslint-config-tc');

Package is ESM-only since v28; CommonJS require() throws ERR_REQUIRE_ESM.

TypeScript config (if any)

✓ import tcConfig from 'eslint-config-tc'; // same as JS

✗ import { default } from 'eslint-config-tc';

No separate TS config; flat config works with @typescript-eslint/parser if added manually.

module.exports (deprecated)

✓ // Not applicable; use flat config spread

✗ module.exports = require('eslint-config-tc');

Package does not export a CommonJS module; use ESM import.

Basic setup for ESLint flat config using eslint-config-tc with a rule override.

// eslint.config.mjs import tcConfig from 'eslint-config-tc'; export default [ ...tcConfig, { rules: { 'no-console': 'warn', }, }, ];

Debug

Known issues

breakingv28.0.0 drops support for Node 20 and ESLint 10 flat config only, removing .eslintrc compatibility.

fix

Upgrade to Node >=22 and use eslint.config.mjs flat config.

affects: >=28.0.0

breakingv27.0.0 drops Node 18.

fix

Use Node >=20.

affects: >=27.0.0

breakingv26.0.0 requires eslint-plugin-jest >=28.0.0 and removes jest/no-if rule.

fix

Update eslint-plugin-jest to ^28.0.0; remove jest/no-if from overrides.

affects: >=26.0.0

deprecatedv24.0.0 requires eslint-plugin-prettier ^5.0.0 and prettier ^3.0.0; older versions are deprecated.

fix

Update compatibility: eslint-plugin-prettier >=5, prettier >=3.

affects: >=24.0.0

gotchaPeer dependencies must be installed manually; using npx install-peerdeps --dev eslint-config-tc is recommended.

fix

Run npx install-peerdeps --dev eslint-config-tc to install all peers.

affects: >=28.0.0

gotchaPackage is ESM-only since v28; require() throws ERR_REQUIRE_ESM.

fix

Use import syntax or dynamic import().

affects: >=28.0.0

Errors

Common errors & fixes

Error [ERR_REQUIRE_ESM]: require() of ES Module /path/to/eslint-config-tc/index.mjs not supported.

Using CommonJS require() to load an ESM-only package.

fix

Use import syntax in an ESM context: import tcConfig from 'eslint-config-tc';

ESLint couldn't find the config "eslint-config-tc".

Missing or incorrectly installed package; or using outdated eslintrc format.

fix

Install peer dependencies via npx install-peerdeps --dev eslint-config-tc, and use eslint.config.mjs flat config.

Cannot find module '@eslint/js'

Missing peer dependency @eslint/js.

fix

npm install --save-dev @eslint/js

Configuration for rule "jest/no-if" is invalid: Value 'error' is not accepted.

v26.0.0 removed jest/no-if rule; referencing it in overrides causes error.

fix

Remove jest/no-if from your overrides.

Upgrade

Version history

28.0.3latest on npm

Audit

Dependencies

@eslint/jsrequiredpeer dependency for ESLint JS rules

eslintrequiredpeer dependency (>=10)

eslint-plugin-import-xrequiredpeer dependency for import rules

eslint-plugin-jestrequiredpeer dependency for Jest rules

eslint-plugin-prettierrequiredpeer dependency for Prettier integration

eslint-plugin-unicornrequiredpeer dependency for unicorn rules

globalsrequiredpeer dependency for global variable definitions

prettierrequiredpeer dependency for formatting

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/tclindner/eslint-config-tc ↗

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