diff --git a/src/content/blog/2023/03/16/introducing-react-dev.md b/src/content/blog/2023/03/16/introducing-react-dev.md index 2498f40dc..c4da2b61f 100644 --- a/src/content/blog/2023/03/16/introducing-react-dev.md +++ b/src/content/blog/2023/03/16/introducing-react-dev.md @@ -269,7 +269,7 @@ Use the conditional operator (`cond ? a : b`) to render a ❌ if `isPacked` isn function Item({ name, isPacked }) { return (
  • - {name} {isPacked && '✔'} + {name} {isPacked && '✅'}
  • ); } @@ -307,7 +307,7 @@ export default function PackingList() { function Item({ name, isPacked }) { return (
  • - {name} {isPacked ? '✔' : '❌'} + {name} {isPacked ? '✅' : '❌'}
  • ); } diff --git a/src/content/learn/conditional-rendering.md b/src/content/learn/conditional-rendering.md index 89a74d18b..4c478ad75 100644 --- a/src/content/learn/conditional-rendering.md +++ b/src/content/learn/conditional-rendering.md @@ -52,13 +52,17 @@ export default function PackingList() { +<<<<<<< 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}`. +>>>>>>> 7d50c3ffd4df2dc7903f4e41069653a456a9c223 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
  • {name} ✔
  • ; + return
  • {name} ✅
  • ; } return
  • {name}
  • ; ``` @@ -70,7 +74,7 @@ return
  • {name}
  • ; ```js function Item({ name, isPacked }) { if (isPacked) { - return
  • {name} ✔
  • ; + return
  • {name} ✅
  • ; } return
  • {name}
  • ; } @@ -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 -
  • {name} ✔
  • +
  • {name} ✅
  • ``` مشابه جدًا لـ @@ -172,7 +176,7 @@ export default function PackingList() { ```js if (isPacked) { - return
  • {name} ✔
  • ; + return
  • {name} ✅
  • ; } return
  • {name}
  • ; ``` @@ -187,7 +191,7 @@ return
  • {name}
  • ; ```js if (isPacked) { - return
  • {name} ✔
  • ; + return
  • {name} ✅
  • ; } return
  • {name}
  • ; ``` @@ -197,12 +201,16 @@ return
  • {name}
  • ; ```js return (
  • - {isPacked ? name + ' ✔' : name} + {isPacked ? name + ' ✅' : name}
  • ); ``` +<<<<<<< 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`"*. +>>>>>>> 7d50c3ffd4df2dc7903f4e41069653a456a9c223 @@ -222,7 +230,7 @@ function Item({ name, isPacked }) {
  • {isPacked ? ( - {name + ' ✔'} + {name + ' ✅'} ) : ( name @@ -265,7 +273,7 @@ export default function PackingList() { ```js return (
  • - {name} {isPacked && '✔'} + {name} {isPacked && '✅'}
  • ); ``` @@ -280,7 +288,7 @@ return ( function Item({ name, isPacked }) { return (
  • - {name} {isPacked && '✔'} + {name} {isPacked && '✅'}
  • ); } @@ -336,7 +344,7 @@ let itemContent = name; ```js if (isPacked) { - itemContent = name + " ✔"; + itemContent = name + " ✅"; } ``` @@ -356,7 +364,7 @@ if (isPacked) { function Item({ name, isPacked }) { let itemContent = name; if (isPacked) { - itemContent = name + " ✔"; + itemContent = name + " ✅"; } return (
  • @@ -400,7 +408,7 @@ function Item({ name, isPacked }) { if (isPacked) { itemContent = ( - {name + " ✔"} + {name + " ✅"} ); } @@ -461,7 +469,7 @@ export default function PackingList() { function Item({ name, isPacked }) { return (
  • - {name} {isPacked && '✔'} + {name} {isPacked && '✅'}
  • ); } @@ -499,7 +507,7 @@ export default function PackingList() { function Item({ name, isPacked }) { return (
  • - {name} {isPacked ? '✔' : '❌'} + {name} {isPacked ? '✅' : '❌'}
  • ); } diff --git a/src/content/learn/describing-the-ui.md b/src/content/learn/describing-the-ui.md index 3f2283134..f2b781282 100644 --- a/src/content/learn/describing-the-ui.md +++ b/src/content/learn/describing-the-ui.md @@ -326,7 +326,7 @@ export function getImageUrl(person, size = 's') { function Item({ name, isPacked }) { return (
  • - {name} {isPacked && '✔'} + {name} {isPacked && '✅'}
  • ); } diff --git a/src/content/learn/you-might-not-need-an-effect.md b/src/content/learn/you-might-not-need-an-effect.md index 66cdc3117..27031720d 100644 --- a/src/content/learn/you-might-not-need-an-effect.md +++ b/src/content/learn/you-might-not-need-an-effect.md @@ -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. +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: diff --git a/vercel.json b/vercel.json index eac0efb9c..8b0546e37 100644 --- a/vercel.json +++ b/vercel.json @@ -24,6 +24,11 @@ "destination": "/learn/rendering-lists#keeping-list-items-in-order-with-key", "permanent": false }, + { + "source": "/docs/lists-and-keys", + "destination": "/learn/rendering-lists#keeping-list-items-in-order-with-key", + "permanent": false + }, { "source": "/link/invalid-hook-call", "destination": "/warnings/invalid-hook-call-warning",