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Linting with Eslint

Published April 5, 2023Last updated May 28, 20231 min read

Linting represents static code analysis based on specified rules. Please include it in the CI pipeline.


Run the following commands to generate the linter configuration using the eslint package.

npm init -y
npm init @eslint/config

Below is an example of the configuration. Some rules can be ignored or suppressed as warnings.

// .eslintrc.js
module.exports = {
env: {
commonjs: true,
es2021: true,
node: true,
jest: true,
extends: 'airbnb-base',
overrides: [
parserOptions: {
ecmaVersion: 'latest',
rules: {
'import/no-extraneous-dependencies': 'warn',
'import/prefer-default-export': 'off',

Ignore the files with the .eslintignore file.



Configure and run the script with the npm run lint command. Some errors can be fixed automatically with the --fix option.

// package.json
"scripts": {
// ...
"lint": "eslint src",
"lint:fix": "npm run lint -- --fix"


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