Next.js with prettier formatting

Question

I'm trying to format my next.js project with prettier. In my package.json I've defined this:

"scripts": {
"format": "prettier --write \"**/*.{js, jsx}\"",
},

So my project has a lot of folders:

• components
• layouts
• pages
• .next

I obviously don't want to run prettier in my .next folder. How can I ignore some folders?

Answer 1

Try this:

"scripts": {
"format": "prettier --write \"{,!(.next)/**/}*.{js, jsx}\"",
},

Answer 2

You can add .prettierignore in the project root directory.

node_modules
.next
out

It uses .gitignore syntax.

Answer 3

There is a good .prettierignore setup for a base Next.js install on the official github. I use this one a lot as a base to start from.

https://github.com/vercel/next.js/blob/canary/.prettierignore

node_modules
**/.next/**
**/_next/**
**/dist/**
**/__tmp__/**
lerna.json
.github