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Sync with react.dev @ c003ac4e #585

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a220bb3
docs: replace check mark emoji to check mark button emoji (#7121)
k35o Aug 22, 2024
b5f28b4
Redirect lists-and-keys to rendering-lists describing key (#7120)
BartoszKlonowski Aug 23, 2024
7d50c3f
Emphasize the second problem paragraph with chain of effects example …
BartoszKlonowski Aug 25, 2024
50004fa
Adds React Advanced London 2024 (#7127)
PixelsCommander Aug 26, 2024
40d7349
Parallel structure
sophiebits Aug 29, 2024
c2d6131
Fix typo 'bulit' -> 'built' (#7138)
tveastman Sep 1, 2024
391dadb
Fix typos in lazy.md and cache.md (#7141)
kihyeoon Sep 2, 2024
cd923d6
Update conferences.md to move the past conferences lower (#7130)
JiashengWu Sep 6, 2024
2c06272
add React Day Berlin 2024 to conferences.md (#7137)
McFrid Sep 6, 2024
60ef58c
Update conferences.md, add conference (#7135)
OlegKomissarov Sep 6, 2024
9aa2e36
Changed the documentation of the subscribe argument to a more accurat…
Tinttori Sep 8, 2024
0f2284d
Update copyright footer (#7152)
kassens Sep 9, 2024
13a73c1
Update the version 3 (#7161)
imparth7 Sep 16, 2024
505c85d
Update you-might-not-need-an-effect.md (#7169)
harish-sethuraman Sep 17, 2024
39abc60
Nit: server actions can't be passed events (#7175)
rickhanlonii Sep 19, 2024
c003ac4
Add stable fn notes to useMemo, useTransition, useState, and useReduc…
rickhanlonii Sep 22, 2024
b96034e
merging all conflicts
react-translations-bot Sep 23, 2024
27b6ec2
Update src/content/learn/conditional-rendering.md
AhmedBaset Sep 23, 2024
aa79071
Update src/content/learn/conditional-rendering.md
AhmedBaset Sep 23, 2024
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12 changes: 6 additions & 6 deletions .github/workflows/analyze.yml
Original file line number Diff line number Diff line change
Expand Up @@ -11,18 +11,18 @@ jobs:
analyze:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- uses: actions/checkout@v3

- name: Set up node
uses: actions/setup-node@v1
uses: actions/setup-node@v3
with:
node-version: '20.x'

- name: Install dependencies
uses: bahmutov/npm-install@v1.7.10

- name: Restore next build
uses: actions/cache@v2
uses: actions/cache@v3
id: restore-build-cache
env:
cache-name: cache-next-build
Expand All @@ -41,7 +41,7 @@ jobs:
run: npx -p nextjs-bundle-analysis@0.5.0 report

- name: Upload bundle
uses: actions/upload-artifact@v2
uses: actions/upload-artifact@v3
with:
path: .next/analyze/__bundle_analysis.json
name: bundle_analysis.json
Expand Down Expand Up @@ -73,7 +73,7 @@ jobs:
run: ls -laR .next/analyze/base && npx -p nextjs-bundle-analysis compare

- name: Upload analysis comment
uses: actions/upload-artifact@v2
uses: actions/upload-artifact@v3
with:
name: analysis_comment.txt
path: .next/analyze/__bundle_analysis_comment.txt
Expand All @@ -82,7 +82,7 @@ jobs:
run: echo ${{ github.event.number }} > ./pr_number

- name: Upload PR number
uses: actions/upload-artifact@v2
uses: actions/upload-artifact@v3
with:
name: pr_number
path: ./pr_number
Expand Down
2 changes: 1 addition & 1 deletion src/components/Layout/Footer.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -283,7 +283,7 @@ export function Footer() {
<div
className="text-xs text-left rtl:text-right mt-2 pe-0.5"
dir="ltr">
&copy;{new Date().getFullYear()}
Copyright &copy; Meta Platforms, Inc
</div>
<div
className="uwu-visible text-xs cursor-pointer hover:text-link hover:dark:text-link-dark hover:underline"
Expand Down
4 changes: 2 additions & 2 deletions src/content/blog/2023/03/16/introducing-react-dev.md
Original file line number Diff line number Diff line change
Expand Up @@ -269,7 +269,7 @@ Use the conditional operator (`cond ? a : b`) to render a ❌ if `isPacked` isn
function Item({ name, isPacked }) {
return (
<li className="item">
{name} {isPacked && ''}
{name} {isPacked && ''}
</li>
);
}
Expand Down Expand Up @@ -307,7 +307,7 @@ export default function PackingList() {
function Item({ name, isPacked }) {
return (
<li className="item">
{name} {isPacked ? '' : '❌'}
{name} {isPacked ? '' : '❌'}
</li>
);
}
Expand Down
55 changes: 35 additions & 20 deletions src/content/community/conferences.md
Original file line number Diff line number Diff line change
Expand Up @@ -10,26 +10,6 @@ Do you know of a local React.js conference? Add it here! (Please keep the list c

## Upcoming Conferences {/*upcoming-conferences*/}

### React Nexus 2024 {/*react-nexus-2024*/}
July 04 & 05, 2024. Bangalore, India (In-person event)

[Website](https://reactnexus.com/) - [Twitter](https://twitter.com/ReactNexus) - [Linkedin](https://www.linkedin.com/company/react-nexus) - [YouTube](https://www.youtube.com/reactify_in)

### Chain React 2024 {/*chain-react-2024*/}
July 17-19, 2024. In-person in Portland, OR, USA

[Website](https://chainreactconf.com) - [Twitter](https://twitter.com/ChainReactConf)

### The Geek Conf 2024 {/*the-geek-conf-2024*/}
July 25, 2024. In-person in Berlin, Germany + remote (hybrid event)

[Website](https://thegeekconf.com) - [Twitter](https://twitter.com/thegeekconf)

### React Rally 2024 🐙 {/*react-rally-2024*/}
August 12-13, 2024. Park City, UT, USA

[Website](https://reactrally.com) - [Twitter](https://twitter.com/ReactRally) - [YouTube](https://www.youtube.com/channel/UCXBhQ05nu3L1abBUGeQ0ahw)

### React Universe Conf 2024 {/*react-universe-conf-2024*/}
September 5-6, 2024. Wrocław, Poland.

Expand All @@ -55,13 +35,48 @@ October 18, 2024. In-person in Brussels, Belgium (hybrid event)

[Website](https://www.react.brussels/) - [Twitter](https://x.com/BrusselsReact)

### React Advanced London 2024 {/*react-advanced-london-2024*/}
October 25 & 28, 2024. In-person in London, UK + online (hybrid event)

[Website](https://reactadvanced.com/) - [Twitter](https://x.com/reactadvanced)

### React Summit US 2024 {/*react-summit-us-2024*/}
November 19 & 22, 2024. In-person in New York, USA + online (hybrid event)

[Website](https://reactsummit.us/) - [Twitter](https://twitter.com/reactsummit) - [Videos](https://portal.gitnation.org/)

### React Africa 2024 {/*react-africa-2024*/}
November 29, 2024. In-person in Casablanca, Morocco (hybrid event)

[Website](https://react-africa.com/) - [Twitter](https://x.com/BeJS_)

### React Day Berlin 2024 {/*react-day-berlin-2024*/}
December 13 & 16, 2024. In-person in Berlin, Germany + remote (hybrid event)

[Website](https://reactday.berlin/) - [Twitter](https://x.com/reactdayberlin)

## Past Conferences {/*past-conferences*/}

### React Rally 2024 🐙 {/*react-rally-2024*/}
August 12-13, 2024. Park City, UT, USA

[Website](https://reactrally.com) - [Twitter](https://twitter.com/ReactRally) - [YouTube](https://www.youtube.com/channel/UCXBhQ05nu3L1abBUGeQ0ahw)

### The Geek Conf 2024 {/*the-geek-conf-2024*/}
July 25, 2024. In-person in Berlin, Germany + remote (hybrid event)

[Website](https://thegeekconf.com) - [Twitter](https://twitter.com/thegeekconf)

### Chain React 2024 {/*chain-react-2024*/}
July 17-19, 2024. In-person in Portland, OR, USA

[Website](https://chainreactconf.com) - [Twitter](https://twitter.com/ChainReactConf)

### React Nexus 2024 {/*react-nexus-2024*/}
July 04 & 05, 2024. Bangalore, India (In-person event)

[Website](https://reactnexus.com/) - [Twitter](https://twitter.com/ReactNexus) - [Linkedin](https://www.linkedin.com/company/react-nexus) - [YouTube](https://www.youtube.com/reactify_in)

### React Summit 2024 {/*react-summit-2024*/}
June 14 & 18, 2024. In-person in Amsterdam, Netherlands + remote (hybrid event)

Expand Down
36 changes: 22 additions & 14 deletions src/content/learn/conditional-rendering.md
Original file line number Diff line number Diff line change
Expand Up @@ -52,13 +52,17 @@ export default function PackingList() {

</Sandpack>

<<<<<<< HEAD
لاحظ أن بعض مكونات `Item` لديها خاصية `isPacked` معينة إلى `true` بدلا من `false`. ترغب في إضافة علامة التحقق (✔) إلى العناصر المحزومة في حالة `isPacked={true}`.
=======
Notice that some of the `Item` components have their `isPacked` prop set to `true` instead of `false`. You want to add a checkmark (✅) to packed items if `isPacked={true}`.
>>>>>>> c003ac4eb130fca70b88cf3a1b80ce5f76c51ae3
AhmedBaset marked this conversation as resolved.
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يمكنك كتابة ذلك باستخدام [عبارة `if`/`else`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/if...else) على النحو التالي:

```js
if (isPacked) {
return <li className="item">{name} </li>;
return <li className="item">{name} </li>;
}
return <li className="item">{name}</li>;
```
Expand All @@ -70,7 +74,7 @@ return <li className="item">{name}</li>;
```js
function Item({ name, isPacked }) {
if (isPacked) {
return <li className="item">{name} </li>;
return <li className="item">{name} </li>;
}
return <li className="item">{name}</li>;
}
Expand Down Expand Up @@ -159,7 +163,7 @@ export default function PackingList() {
في المثال السابق، تحكمت في شجرة JSX (إن وجدت!) التي سيُرجعها المكون. ربما لاحظت بالفعل بعض التكرار في ناتج العرض:

```js
<li className="item">{name} </li>
<li className="item">{name} </li>
```

مشابه جدًا لـ
Expand All @@ -172,7 +176,7 @@ export default function PackingList() {

```js
if (isPacked) {
return <li className="item">{name} </li>;
return <li className="item">{name} </li>;
}
return <li className="item">{name}</li>;
```
Expand All @@ -187,7 +191,7 @@ return <li className="item">{name}</li>;

```js
if (isPacked) {
return <li className="item">{name} </li>;
return <li className="item">{name} </li>;
}
return <li className="item">{name}</li>;
```
Expand All @@ -197,12 +201,16 @@ return <li className="item">{name}</li>;
```js
return (
<li className="item">
{isPacked ? name + ' ' : name}
{isPacked ? name + ' ' : name}
</li>
);
```

<<<<<<< HEAD
يمكنك قرائتها على النحو التالي *”إذا كان `isPacked` صحيحا، إذا قم بعرض `name + ' ✔'`، وإلا (`:`) قم بعرض `name`“.*
=======
You can read it as *"if `isPacked` is true, then (`?`) render `name + ' ✅'`, otherwise (`:`) render `name`"*.
>>>>>>> c003ac4eb130fca70b88cf3a1b80ce5f76c51ae3
AhmedBaset marked this conversation as resolved.
Show resolved Hide resolved

<DeepDive>

Expand All @@ -222,7 +230,7 @@ function Item({ name, isPacked }) {
<li className="item">
{isPacked ? (
<del>
{name + ' '}
{name + ' '}
</del>
) : (
name
Expand Down Expand Up @@ -265,7 +273,7 @@ export default function PackingList() {
```js
return (
<li className="item">
{name} {isPacked && ''}
{name} {isPacked && ''}
</li>
);
```
Expand All @@ -280,7 +288,7 @@ return (
function Item({ name, isPacked }) {
return (
<li className="item">
{name} {isPacked && ''}
{name} {isPacked && ''}
</li>
);
}
Expand Down Expand Up @@ -336,7 +344,7 @@ let itemContent = name;

```js
if (isPacked) {
itemContent = name + " ";
itemContent = name + " ";
}
```

Expand All @@ -356,7 +364,7 @@ if (isPacked) {
function Item({ name, isPacked }) {
let itemContent = name;
if (isPacked) {
itemContent = name + " ";
itemContent = name + " ";
}
return (
<li className="item">
Expand Down Expand Up @@ -400,7 +408,7 @@ function Item({ name, isPacked }) {
if (isPacked) {
itemContent = (
<del>
{name + " "}
{name + " "}
</del>
);
}
Expand Down Expand Up @@ -461,7 +469,7 @@ export default function PackingList() {
function Item({ name, isPacked }) {
return (
<li className="item">
{name} {isPacked && ''}
{name} {isPacked && ''}
</li>
);
}
Expand Down Expand Up @@ -499,7 +507,7 @@ export default function PackingList() {
function Item({ name, isPacked }) {
return (
<li className="item">
{name} {isPacked ? '' : '❌'}
{name} {isPacked ? '' : '❌'}
</li>
);
}
Expand Down
2 changes: 1 addition & 1 deletion src/content/learn/describing-the-ui.md
Original file line number Diff line number Diff line change
Expand Up @@ -326,7 +326,7 @@ export function getImageUrl(person, size = 's') {
function Item({ name, isPacked }) {
return (
<li className="item">
{name} {isPacked && ''}
{name} {isPacked && ''}
</li>
);
}
Expand Down
4 changes: 2 additions & 2 deletions src/content/learn/you-might-not-need-an-effect.md
Original file line number Diff line number Diff line change
Expand Up @@ -408,9 +408,9 @@ function Game() {

There are two problems with this code.

One problem is that it is very inefficient: the component (and its children) have to re-render between each `set` call in the chain. In the example above, in the worst case (`setCard` → render → `setGoldCardCount` → render → `setRound` → render → `setIsGameOver` → render) there are three unnecessary re-renders of the tree below.
The first problem is that it is very inefficient: the component (and its children) have to re-render between each `set` call in the chain. In the example above, in the worst case (`setCard` → render → `setGoldCardCount` → render → `setRound` → render → `setIsGameOver` → render) there are three unnecessary re-renders of the tree below.

Even if it weren't slow, as your code evolves, you will run into cases where the "chain" you wrote doesn't fit the new requirements. Imagine you are adding a way to step through the history of the game moves. You'd do it by updating each state variable to a value from the past. However, setting the `card` state to a value from the past would trigger the Effect chain again and change the data you're showing. Such code is often rigid and fragile.
The second problem is that even if it weren't slow, as your code evolves, you will run into cases where the "chain" you wrote doesn't fit the new requirements. Imagine you are adding a way to step through the history of the game moves. You'd do it by updating each state variable to a value from the past. However, setting the `card` state to a value from the past would trigger the Effect chain again and change the data you're showing. Such code is often rigid and fragile.

In this case, it's better to calculate what you can during rendering, and adjust the state in the event handler:

Expand Down
2 changes: 1 addition & 1 deletion src/content/reference/react-dom/components/index.md
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ They are special in React because passing the `value` prop to them makes them *[

## Resource and Metadata Components {/*resource-and-metadata-components*/}

These bulit-in browser components let you load external resources or annotate the document with metadata:
These built-in browser components let you load external resources or annotate the document with metadata:

* [`<link>`](/reference/react-dom/components/link)
* [`<meta>`](/reference/react-dom/components/meta)
Expand Down
4 changes: 2 additions & 2 deletions src/content/reference/react/cache.md
Original file line number Diff line number Diff line change
Expand Up @@ -226,7 +226,7 @@ By caching a long-running data fetch, you can kick off asynchronous work prior t
```jsx [[2, 6, "await getUser(id)"], [1, 17, "getUser(id)"]]
const getUser = cache(async (id) => {
return await db.user.query(id);
})
});

async function Profile({id}) {
const user = await getUser(id);
Expand Down Expand Up @@ -327,7 +327,7 @@ In general, you should use [`useMemo`](/reference/react/useMemo) for caching a e
'use client';

function WeatherReport({record}) {
const avgTemp = useMemo(() => calculateAvg(record)), record);
const avgTemp = useMemo(() => calculateAvg(record), record);
// ...
}

Expand Down
2 changes: 1 addition & 1 deletion src/content/reference/react/index.md
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ The React reference documentation is broken down into functional subsections:
Programmatic React features:

* [Hooks](/reference/react/hooks) - Use different React features from your components.
* [Components](/reference/react/components) - Documents built-in components that you can use in your JSX.
* [Components](/reference/react/components) - Built-in components that you can use in your JSX.
* [APIs](/reference/react/apis) - APIs that are useful for defining components.
* [Directives](/reference/rsc/directives) - Provide instructions to bundlers compatible with React Server Components.

Expand Down
2 changes: 1 addition & 1 deletion src/content/reference/react/lazy.md
Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,7 @@ Now that your component's code loads on demand, you also need to specify what sh
<Suspense fallback={<Loading />}>
<h2>Preview</h2>
<MarkdownPreview />
</Suspense>
</Suspense>
```

In this example, the code for `MarkdownPreview` won't be loaded until you attempt to render it. If `MarkdownPreview` hasn't loaded yet, `Loading` will be shown in its place. Try ticking the checkbox:
Expand Down
8 changes: 4 additions & 4 deletions src/content/reference/react/useCallback.md
Original file line number Diff line number Diff line change
Expand Up @@ -711,7 +711,7 @@ function ChatRoom({ roomId }) {

useEffect(() => {
const options = createOptions();
const connection = createConnection();
const connection = createConnection(options);
connection.connect();
// ...
```
Expand All @@ -722,7 +722,7 @@ This creates a problem. [Every reactive value must be declared as a dependency o
```js {6}
useEffect(() => {
const options = createOptions();
const connection = createConnection();
const connection = createConnection(options);
connection.connect();
return () => connection.disconnect();
}, [createOptions]); // 🔴 Problem: This dependency changes on every render
Expand All @@ -744,7 +744,7 @@ function ChatRoom({ roomId }) {

useEffect(() => {
const options = createOptions();
const connection = createConnection();
const connection = createConnection(options);
connection.connect();
return () => connection.disconnect();
}, [createOptions]); // ✅ Only changes when createOptions changes
Expand All @@ -766,7 +766,7 @@ function ChatRoom({ roomId }) {
}

const options = createOptions();
const connection = createConnection();
const connection = createConnection(options);
connection.connect();
return () => connection.disconnect();
}, [roomId]); // ✅ Only changes when roomId changes
Expand Down
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