### What?
This PR introduces a new `--tailwind` flag to the `create-next-app` CLI,
to make it easier to bootstrap a Next.js app with Tailwind CSS
pre-configured. This is going to be the **default**. To opt-out of
Tailwind CSS, you can use the `--no-tailwind` flag.
### Why?
Tailwind CSS is one of the most popular styling solutions right now, and
we would like to make it easier to get started.
Currently, the closest you can come to this is by running `pnpm create
next-app -e with-tailwindcss` which will clone the
https://github.com/vercel/next.js/tree/canary/examples/with-tailwindcss
example. But that example is not configured for the App Router. This PR
will let you add Tailwind CSS to both `app/`, `pages/`, and start out
with TypeScript or JavaScript via the CLI prompts.
(Some community feedback
https://twitter.com/dev_jonaskaas/status/1632367991827443713,
https://twitter.com/samselikoff/status/1634662473331617794)
### How?
We are adding 4 new templates to the CLI bundle.
> Note: The styling is not pixel-perfect compared to the current
templates (using CSS modules) to require fewer overrides, but I tried to
match it as close as possible. Here are a few screenshots:
<details>
<summary><b>Current, light</b></summary>
<img
src="https://user-images.githubusercontent.com/18369201/224733372-9dba86fe-9191-471d-ad9f-ab904c47f544.png"/>
</details>
<details>
<summary><b>Tailwind (new), light</b></summary>
<img
src="https://user-images.githubusercontent.com/18369201/224733610-038d9d0f-634d-4b69-b5c2-a5056b56760c.png"/>
</details>
<details>
<summary><b>Current, dark, responsive</b></summary>
<img
src="https://user-images.githubusercontent.com/18369201/224733790-9b4d730c-0336-4dbe-bc10-1cae1d7fd145.png"/>
</details>
<details>
<summary><b>Tailwind (new), dark, responsive</b></summary>
<img
src="https://user-images.githubusercontent.com/18369201/224734375-28384bbc-2c3a-4125-8f29-c102f3b7aa1d.png"/>
</details>
#### For reviewers
This introduces 4 new templates, with a very similar code base to the
original ones. To keep the PR focused, I decided to copy over duplicate
code, but we could potentially create a shared folder for files that are
the same across templates to somewhat reduce the CLI size. Not sure if
it's worth it, let me know. Probably fine for now, but something to
consider if we are adding more permutations in the future.
---
~Work remaining:~
- [x] app+ts
- [x] layout
- [x] dark mode
- [x] media queries
- [x] animations
- [x] app+js
- [x] pages+ts
- [x] pages+js
- [x] prompt/config
- [x] deprecate Tailwind CSS example in favor of CLI
- [x] update docs
- [x] add test
- [x] add [Prettier
plugin](https://github.com/tailwindlabs/prettier-plugin-tailwindcss)
Closes NEXT-772
Related #45814, #44286
Finish up OTEL example with HTTP (we don't recommend grpc because that
package is needlessly large).
Also added a link to a simple repo with otel collector and few backends:
https://github.com/vercel/opentelemetry-collector-dev-setup
---------
Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
updated zustand example to 4.3.6
changed out zustand's deprecated methods (createContext, create)
converted the example to typescript
## Why
zustand's example in nextjs repo is for zustand v3 which is quite
different to how things are done in v4, it was also in javascript.
back when when I started to use zustand in my nextjs app, this example
helped me a lot and now, I wanna do the same for devs that come here to
see how they can integrate next and zustand.
## Documentation / Examples
[✓] Make sure the linting passes by running pnpm build && pnpm lint
[✓] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
We want to make sure that our examples are not breaking.
We don't want to be slowed down by broken 3rd party packages, but we
need to ensure that examples covering next.js features are always green.
Added as a standalone workflow that doesn't parallelize. It will just
run on a cron schedule, so we can check for current status. We can add
Slack ping later if we need to.
The workflow tests just that our examples can build, so mostly TS
issues. We could definitely follow up with actual tests, but that is not
as low-hanging.
---------
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
fixes NEXT-479
## content
This PR adds a `getTracer` API to Next.js that uses the `otel/api` under
the hood to provide Next.js level instrumentation through Open
Telemetry.
This also adds an example `with-opentelemetry` to demonstrate how it can
be used, assuming you have a collector.
This allows most notably to have `getServerSideProps` and `fetch` calls
inside Server Components traced.
## details
- we hide most internals spans, if you want to see all of them, use the
NEXT_OTEL_VERBOSE=1 env var
- if you want to use this, you'll need to rely on the
`config.experimental.instrumentationHook` config option to initialise
OTEL, like in the example
## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ]
[e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs)
tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)
## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
## Bug
Relate discussions: #38256
Occur in blog starter template.
```
Warning: A title element received an array with more than 1 element as children. In browsers title Elements can only have Text Nodes as children. If the children being rendered output more than a single text node in aggregate the browser will display markup and comments as text in the title and hydration will likely fail and fall back to client rendering
at title
at head
at Head (webpack-internal:///./node_modules/.pnpm/next@13.1.6_biqbaboplfbrettd7655fr4n2y/node_modules/next/dist/pages/_document.js:279:1)
at html
at Html (webpack-internal:///./node_modules/.pnpm/next@13.1.6_biqbaboplfbrettd7655fr4n2y/node_modules/next/dist/pages/_document.js:678:104)
at Document
```
This adds `loader-runner` to the compiled packages distributed with
Next.js
This is a dependency of Turbopack's webpack loader support. Currently,
users have to manually install `loader-runner` in their application to
use webpack loaders with Turbopack. This will allow Turbopack to require
loader-runner from within the installed version of Next.js instead.
Test Plan: `require('./packages/next/dist/compiled/loader-runner/')`
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## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ]
[e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs)
tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)
## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
This PR updates the `with-lingui` example's dependencies and the actual Lingui site URL
## Documentation / Examples
- [x] Make sure the linting passes by running `pnpm build && pnpm lint`
- [x] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
Change 404 project codebase link in example with-turbopack to the
correct one
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## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ]
[e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs)
tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)
## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
[Cypress](https://www.cypress.io/) recently went GA with a Component Testing offering which supports Next.js. This PR adds a brief section on what and how to use Cypress for component-level testing and updates the example project with a component test.
Any feedback on content or the example is welcome, thanks for considering!
## Documentation / Examples
- [x] Make sure the linting passes by running `pnpm build && pnpm lint`
- [x] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
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## Documentation / Examples
- [x] Make sure the linting passes by running `pnpm build && pnpm lint`
- [x] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
First of all thanks for this amazing project and all the help you
provide with these examples.
It seems there is code duplication in this example. After some tests
locally seem to _document.js is not necessary for `gtag` to work
properly.
9d97a1e34a/examples/with-google-analytics/pages/_app.js (L30-L34)9d97a1e34a/examples/with-google-analytics/pages/_document.js (L13-L17)
I am aware of https://github.com/vercel/next.js/pull/40645 and I would
like to ask @dave-hay, @SukkaW and @ijjk to consider this is still
necessary. If so why then not move all content of the scripts from _app
to _document?
In any case, I am open to adding here some comments explaining what is
the reason for this code duplication if necessary.
<hr/>
Changes that come from https://github.com/vercel/next.js/pull/43897
1. The `event` hashChangeComplete should be removed since `/home` and
`/home/#section` is not new pageview, but just reference to the same
page.
If we go from /home to /home/#section (with a button click or a link for
example) this shouldn't trigger a new page visit on `gtag`.
For this reason, I think we should revert the changes from
https://github.com/vercel/next.js/pull/36079. If there is a better
argument of why this should stay I am also open to creating comments to
clarify this on the example since I don't think should be the default
behavior and not useful in most cases.
2. The `id="gtag-init"` was added with no context to the example from
https://github.com/vercel/next.js/pull/29530
If there is a reason for this id in the script to existing I am open to
adding a comment that clarifies this since in my experience is not
necessary at all.
Edit: Batching with https://github.com/vercel/next.js/pull/43897 as
recommended by
https://github.com/vercel/next.js/pull/43897#issuecomment-1344635000
---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
