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[FileNaming] Has the file naming convention in NextJS changed to use all lowercase?

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West African Crocodile posted this in #help-forum
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West African CrocodileOP
So while browsing the Layout section in the Nextjs docs, https://nextjs.org/docs/pages/building-your-application/routing/pages-and-layouts#layout-pattern they put a file name on each top of code example. And for layout they name the file as

// components/layout.js

It's all written in lowercase and use .js format instead of .jsx. 😲

Is the naming convention is now all lowercase? Just like in nuxt? 🧐

Thank you !!
Answered by joulev
oh that one isn't enforced by nextjs. you can use components/ThemeSwitch.tsx or components/theme-switch.tsx, it's your choice.

but i would say more and more people have been switching to kebab-case instead of PascalCase or camelCase to avoid problems relating to OS case sensitivity. see for example: https://nextjs-faq.com/module-not-found-due-to-case-sensitivity
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West African CrocodileOP
Thank you for answering @joulev . I'm asking because on the page I mentioned above, the route for the layout is inside a /component directory. Additionally, I just ran a basic installation for NextUI and noticed that all the component names aren't capitalized. That blew my mind, to be honest. 😅
@West African Crocodile Thank you for answering <@484037068239142956> . I'm asking because on the page I mentioned above, the route for the layout is inside a `/component` directory. Additionally, I just ran a basic installation for `NextUI` and noticed that all the component names aren't capitalized. That blew my mind, to be honest. 😅
oh that one isn't enforced by nextjs. you can use components/ThemeSwitch.tsx or components/theme-switch.tsx, it's your choice.

but i would say more and more people have been switching to kebab-case instead of PascalCase or camelCase to avoid problems relating to OS case sensitivity. see for example: https://nextjs-faq.com/module-not-found-due-to-case-sensitivity
Answer
(by the way, in case you didn't know, react doesn't enforce anything about file names. naming your component files in PascalCase is just a habit introduced by various react courses and tutorials. you are completely free to name the files in any way you want.)
West African CrocodileOP
Wow, I didn't know that. Thank you again, that's very useful. I appreciate it
West African CrocodileOP
if you have some minutes (just to make sure that we're on the same page) take a look at this article please and probably this article is related only for components name not for files-components-name.tsx is that correct? https://ihsavru.medium.com/why-react-component-names-must-begin-with-a-capital-letter-d4b5e5985209
West African CrocodileOP
pretty clear!