DEV Community

Cover image for Adding ESLint and Prettier to Nuxt 3 ✨ (2024)

Adding ESLint and Prettier to Nuxt 3 ✨ (2024)

Lewis Lloyd on January 01, 2023

🎉 Update (April 2024): This tutorial now uses the @nuxt/eslint module. Introduction In this post, we'll introduce ESLint and Prettier f...
Read full post
Collapse
 
kissu profile image
Konstantin BIFERT •

Thanks for the article Lewis. 🙏🏻

So, you're not extending the ESlint configuration with @nuxtjs as in here? That one is an old configuration that I used for a Nuxt2 project but I feel like a Vue linter is still needed.

A Vue3 or a Nuxt3 one would be even better to follow the latest rules with Composition API, accomodate Vue3 changes etc but I didn't took the time to find an exact configuration there (this one from Antfu is probably the closest best AFAIK).
Still, I feel like getting errors related to Prettier and mainly Vue is quite important.

I myself quite also enjoy having it on autosave as explained here with an Errorlens so that I can have various errors/warnings just next to my codebase while writing. Quite nazi for sure 😹 but it's great to not shift windows/context.

Collapse
 
tao profile image
Lewis Lloyd •

Hey! 😸 Thanks for your comment.

The example extends @nuxtjs/eslint-config-typescript, which is recommended by the docs (github.com/nuxt/eslint-config#type...) for TypeScript support.

Just to prove it, here's Vue being annoyed for not using the v-bind: shorthand.

Screenshot of v-bind shorthand warning in console

You can extend @nuxtjs if you'd like to, which ESLint will assume to be the /eslint-config prefix.

Collapse
 
kissu profile image
Konstantin BIFERT •

Oh damn, it's baked in? I didn't expect that one. Good to know. 👍🏻

Collapse
 
ayodejipy profile image
Jegede Ayodeji O •

Thanks for this Lewis 🙏🏾🙌🏾

However, the article didn't mention this but you need to install @nuxtjs/eslint-config-typescript

# npm
npm i -D @nuxtjs/eslint-config-typescript
# yarn
yarn add --dev @nuxtjs/eslint-config-typescript
Enter fullscreen mode Exit fullscreen mode
Collapse
 
tao profile image
Lewis Lloyd •

Well spotted! I'll drop it in. Thank you for the snippet.

Collapse
 
mickl profile image
Mick •

I get the following error:

There was a problem loading formatter: /Users/.../git/.../node_modules/eslint/lib/cli-engine/formatters/stylish
Error: require() of ES Module /Users/.../git/.../node_modules/strip-ansi/index.js from /Users/.../git/.../node_modules/eslint/lib/cli-engine/formatters/stylish.js not supported.
Instead change the require of index.js in /Users/.../git/.../node_modules/eslint/lib/cli-engine/formatters/stylish.js to a dynamic import() which is available in all CommonJS modules.

Collapse
 
salinder profile image
Nick • • Edited

Hi, Lewis.

I have several questions for you regarding the installation of the prettier + eslint:

  1. Why are you using two packages that perform basically the same thing? One of them is eslint-config-prettier - this plugin is for turning off all rules that are unnecessary or might conflict with Prettier(on docs) and another is eslint-plugin-prettier. eslint-plugin-prettier have disadvantages like leaving linter errors (docs).
  2. Why are you don't using the official repository of nuxt?
Collapse
 
tao profile image
Lewis Lloyd •

Hey!

  1. eslint-plugin-prettier recommends to use eslint-config-prettier to disable all formatting-related ESLint rules: github.com/prettier/eslint-plugin-...

  2. @nuxtjs/eslint-config-typescript is the package name referenced in the official nuxt/eslint-config repository: github.com/nuxt/eslint-config#type...

Collapse
 
shmidtalex profile image
Alexander •

Hey Lewis! could you add runtime linting settings to your wonderful article please?

Collapse
 
serdarde profile image
Serdar •

Thanks for this beautiful article. I had a problem and solved it after removing typescript version 5. I think this can help to other developers too.

As you know, TS5 was released last week, and it shows “TS1109 expression expected” error for the imports statements in the VUE files. Actually, you don't need to add typescript, as it is already existing in the current Nuxt project. We can stay with the TS4 for now.

Happy coding

Collapse
 
tom4s-l profile image
Thomas L •

What a great tutorial! 🤩

However, I have a problem..
I followed it to the letter and the fix commands work well, but the errors are not highlighted in my IDE.

I use Webstorm...

And by the way, the eslint rules seem to be for Vue 2 and not Vue 3.

Collapse
 
pijuli profile image
Marc Salat • • Edited

Hi! How do we get eslint highlighting in vscode? isn't it supposed to work by default if you have the extension installed? Might it be because of the new flat format?
It's such a pain every new project to configure eslint and prettier 🤦‍♀️
Thank you!

Collapse
 
gabortorma profile image
Torma Gábor •

Better way to use ESLint with Nuxt 3 is use to @nuxt/eslint.
Pro tip: use with @antfu/eslint-config

Collapse
 
annas_nuriliman_5ef7fe34 profile image
Annas Nuril Iman •

Thank you for the post, very helpful tutorial. This is truly a time saver. 🙏🏻

Collapse
 
vdsheryarshirazi profile image
vdsheryarshirazi •

how can we use vscode setting to format on save with linting?

Collapse
 
tao profile image
Lewis Lloyd • • Edited

Hello! Check your VSCode settings to make sure that Editor: Format On Save is enabled and that Editor: Default Formatter is set correctly (e.g., I use https://github.com/prettier/prettier-vscode)

Collapse
 
maylean_patrick profile image
maylean patrick amanyire •

Thanks Lewis, Provide an alternative flow for npm