0.2.5 • Public • Published

Eslint and Prettier Setup

These are Five Talents settings for ESLint and Prettier

What it does

  • Lints JavaScript based on the latest standards
  • Fixes issues and formatting errors with Prettier
  • Lints + Fixes inside of html script tags
  • Lints + Fixes React via eslint-config-airbnb
  • You can see all the rules here


You can use eslint globally and/or locally per project.

It's usually best to install this locally once per project, that way you can have project specific settings as well as sync those settings with others working on your project via git.

Local / Per Project Install

  1. If you don't already have a package.json file, create one with npm init.

  2. Then we need to install everything needed by the config:

npx install-peerdeps --dev eslint-config-fivetalent
  1. You can see in your package.json there are now a big list of devDependencies.

  2. Create a .eslintrc file in the root of your project's directory (it should live where package.json does). Your .eslintrc file should look like this:

  "extends": [
  1. You can add two scripts to your package.json to lint and/or fix:
"scripts": {
  "lint": "eslint .",
  "lint:fix": "eslint . --fix"
  1. Now you can manually lint your code by running npm run lint and fix all fixable issues with npm run lint:fix. You probably want your editor to do this though.

Global Install

  1. First install everything needed:
npx install-peerdeps --global eslint-config-fivetalent
  1. Then you need to make a global .eslintrc file:

ESLint will look for one in your home directory

  • ~/.eslintrc for mac
  • C:\Users\username\.eslintrc for windows

In your .eslintrc file, it should look like this:

  "extends": [
  1. To use from the CLI, you can now run eslint . or configure your editor as we show next.


If you'd like to overwrite eslint or prettier settings, you can add the rules in your .eslintrc file. The ESLint rules go directly under "rules" while prettier options go under "prettier/prettier". Note that prettier rules overwrite anything in my config (trailing comma, and single quote), so you'll need to include those as well.

  "extends": [
  "rules": {
    "no-console": 2,
    "prettier/prettier": [
        "trailingComma": "es5",
        "singleQuote": true,
        "printWidth": 120,
        "tabWidth": 8,

With VS Code

You should read this entire thing. Serious!

Once you have done one, or both, of the above installs. You probably want your editor to lint and fix for you. Here are the instructions for VS Code:

  1. Install the ESLint package
  2. Now we need to setup some VS Code settings via Code/FilePreferencesSettings. It's easier to enter these settings while editing the settings.json file, so click the {} icon in the top right corner:
  // These are all my auto-save configs
"editor.formatOnSave": true,
// turn it off for JS and JSX, we will do this via eslint
"[javascript]": {
  "editor.formatOnSave": false
"[javascriptreact]": {
  "editor.formatOnSave": false
// tell the ESLint plugin to run on save
"eslint.autoFixOnSave": true,
// Optional BUT IMPORTANT: If you have the prettier extension enabled for other languages like CSS and HTML, turn it off for JS since we are doing it through Eslint already
"prettier.disableLanguages": ["javascript", "javascriptreact"],


Special Thanks for Wes Bos for the initial work and for being a awesome person.

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