Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

translation for scaling up with reducer and context #364

Merged
merged 11 commits into from
May 1, 2023
Merged
Changes from 2 commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
109 changes: 56 additions & 53 deletions src/content/learn/scaling-up-with-reducer-and-context.md
Original file line number Diff line number Diff line change
@@ -1,24 +1,24 @@
---
title: Scaling Up with Reducer and Context
title: Peningkatan Skala dengan Reducer dan Context
---

<Intro>

Reducers let you consolidate a component's state update logic. Context lets you pass information deep down to other components. You can combine reducers and context together to manage state of a complex screen.
Reducer memungkinkan Anda untuk konsolidasi logika pembaruan *state* komponen. *Context* memungkinkan Anda untuk mengirim informasi ke komponen lain yang lebih dalam. Anda dapat menggabungkan *reducer* dan *context* bersama-sama untuk mengelola state layar yang kompleks.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

</Intro>

<YouWillLearn>

* How to combine a reducer with context
* How to avoid passing state and dispatch through props
* How to keep context and state logic in a separate file
* Bagaimana menggabungkan *reducer* dengan *context*
* Bagaimana menghindari melewatkan *state* dan *dispatch* melalui props
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved
* Bagaimana menjaga konteks dan logika state pada file terpisah
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

</YouWillLearn>

## Combining a reducer with context {/*combining-a-reducer-with-context*/}
## Menggabungkan *reducer* dengan *context* {/*combining-a-reducer-with-context*/}

In this example from [the introduction to reducers](/learn/extracting-state-logic-into-a-reducer), the state is managed by a reducer. The reducer function contains all of the state update logic and is declared at the bottom of this file:
Pada contoh dari [pengenalan *reducer*](/learn/extracting-state-logic-into-a-reducer), *state* dikelola oleh *reducer*. Fungsi *reducer* berisi semua logika pembaruan *state* dan dinyatakan di bagian bawah file ini:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

<Sandpack>

Expand Down Expand Up @@ -207,9 +207,10 @@ ul, li { margin: 0; padding: 0; }

</Sandpack>

A reducer helps keep the event handlers short and concise. However, as your app grows, you might run into another difficulty. **Currently, the `tasks` state and the `dispatch` function are only available in the top-level `TaskApp` component.** To let other components read the list of tasks or change it, you have to explicitly [pass down](/learn/passing-props-to-a-component) the current state and the event handlers that change it as props.
A *reducer* helps keep the event handlers short and concise. However, as your app grows, you might run into another difficulty. **Currently, the `tasks` *state* and the `dispatch` function are only available in the top-level `TaskApp` component.** To let other components read the list of tasks or change it, you have to explicitly [pass down](/learn/passing-props-to-a-component) the current *state* and the event handlers that change it as props.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved
*Reducer* membantu menjaga event handlers menjadi singkat dan ringkas. Namun, ketika aplikasi Anda berkembang, Anda mungkin akan menemukan kesulitan lain. Saat ini, *state* `tugas` dan fungsi `dispatch` hanya tersedia di komponen `TaskApp` level atas. Untuk memungkinkan komponen lain membaca daftar tugas atau mengubahnya, Anda harus secara eksplisit [meneruskan](/learn/passing-props-to-a-component) *state* saat ini dan event handlers yang mengubahnya sebagai props.
zainfathoni marked this conversation as resolved.
Show resolved Hide resolved

For example, `TaskApp` passes a list of tasks and the event handlers to `TaskList`:
Misalnya, `TaskApp` meneruskan daftar tugas dan event handlers ke `TaskList`:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

```js
<TaskList
Expand All @@ -219,7 +220,7 @@ For example, `TaskApp` passes a list of tasks and the event handlers to `TaskLis
/>
```

And `TaskList` passes the event handlers to `Task`:
Dan `TaskList` meneruskan event handlers ke `Task`:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

```js
<Task
Expand All @@ -229,30 +230,30 @@ And `TaskList` passes the event handlers to `Task`:
/>
```

In a small example like this, this works well, but if you have tens or hundreds of components in the middle, passing down all state and functions can be quite frustrating!
Dalam contoh kecil seperti ini, cara ini dapat berfungsi dengan baik, namun jika Anda memiliki puluhan atau ratusan komponen di tengah, meneruskan semua *state* dan fungsi dapat sangat menjengkelkan!

This is why, as an alternative to passing them through props, you might want to put both the `tasks` state and the `dispatch` function [into context.](/learn/passing-data-deeply-with-context) **This way, any component below `TaskApp` in the tree can read the tasks and dispatch actions without the repetitive "prop drilling".**
Inilah mengapa, sebagai alternatif untuk melewatkan melalui props, Anda mungkin ingin menempatkan baik *state* `tugas` maupun fungsi `dispatch` [ke dalam _context_](/learn/passing-data-deeply-with-context) . **Dengan cara ini, komponen apa pun di bawah `TaskApp` dalam *tree* dapat membaca tugas dan melakukan aksi *dispatch* tanpa “pengeboran props” yang berulang.**
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

Here is how you can combine a reducer with context:
Berikut adalah cara menggabungkan *reducer* dengan conteks:

1. **Create** the context.
2. **Put** state and dispatch into context.
3. **Use** context anywhere in the tree.
1. **Buatlah** *context*.
2. **Letakkan** *state* dan *dispatch* ke dalam *context*.
3. **Gunakan** *context* di mana saja dalam *tree*.

### Step 1: Create the context {/*step-1-create-the-context*/}
### Langkah 1: Buat conteks {/*step-1-create-the-context*/}
zainfathoni marked this conversation as resolved.
Show resolved Hide resolved

The `useReducer` Hook returns the current `tasks` and the `dispatch` function that lets you update them:
Hook `useReducer` mengembalikan `tugas` saat ini dan fungsi `dispatch` yang memungkinkan Anda memperbarui tugas:
zainfathoni marked this conversation as resolved.
Show resolved Hide resolved

```js
const [tasks, dispatch] = useReducer(tasksReducer, initialTasks);
```

To pass them down the tree, you will [create](/learn/passing-data-deeply-with-context#step-2-use-the-context) two separate contexts:
Untuk meneruskannya ke dalam *tree*, Anda akan [membuat](/learn/passing-data-deeply-with-context#step-2-use-the-context) dua *contexts* terpisah:
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
Untuk meneruskannya ke dalam *tree*, Anda akan [membuat](/learn/passing-data-deeply-with-context#step-2-use-the-context) dua *contexts* terpisah:
Untuk meneruskannya ke dalam *tree*, Anda akan [membuat](/learn/passing-data-deeply-with-context#step-2-use-the-context) dua *context* terpisah:


- `TasksContext` provides the current list of tasks.
- `TasksDispatchContext` provides the function that lets components dispatch actions.
- `TasksContext` menyediakan daftar tugas saat ini.
- `TasksDispatchContext` menyediakan fungsi yang memungkinkan komponen melakukan aksi *dispatch*.

Export them from a separate file so that you can later import them from other files:
Kemudian ekspor keduanya dari file terpisah agar nantinya dapat diimpor dari file lain:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

<Sandpack>

Expand Down Expand Up @@ -448,11 +449,11 @@ ul, li { margin: 0; padding: 0; }

</Sandpack>

Here, you're passing `null` as the default value to both contexts. The actual values will be provided by the `TaskApp` component.
Di sini, Anda meneruskan `null` sebagai nilai default ke kedua *context*. Nilai aktual akan disediakan oleh komponen `TaskApp`.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

### Step 2: Put state and dispatch into context {/*step-2-put-state-and-dispatch-into-context*/}
### Langkah 2: Letakkan *state* dan *dispatch* ke dalam *context* {/*step-2-put-state-and-dispatch-into-context*/}

Now you can import both contexts in your `TaskApp` component. Take the `tasks` and `dispatch` returned by `useReducer()` and [provide them](/learn/passing-data-deeply-with-context#step-3-provide-the-context) to the entire tree below:
Sekarang Anda dapat mengimpor kedua *context* di komponen `TaskApp` Anda. Ambil `tugas` dan `dispatch` yang dikembalikan oleh `useReducer()` dan [sediakan mereka](/learn/passing-data-deeply-with-context#step-3-provide-the-context) ke seluruh *tree* di bawah:
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
Sekarang Anda dapat mengimpor kedua *context* di komponen `TaskApp` Anda. Ambil `tugas` dan `dispatch` yang dikembalikan oleh `useReducer()` dan [sediakan mereka](/learn/passing-data-deeply-with-context#step-3-provide-the-context) ke seluruh *tree* di bawah:
Sekarang Anda dapat mengimpor kedua *context* di komponen `TaskApp` Anda. Ambil `tasks` dan `dispatch` yang dikembalikan oleh `useReducer()` dan [sediakan mereka](/learn/passing-data-deeply-with-context#step-3-provide-the-context) kepada seluruh pohon (*tree*) di bawahnya:

We shouldn't translate tasks because it refers to the words being used in the code examples.


```js {4,7-8}
import { TasksContext, TasksDispatchContext } from './TasksContext.js';
Expand All @@ -470,7 +471,7 @@ export default function TaskApp() {
}
```

For now, you pass the information both via props and in context:
Saat ini, Anda meneruskan informasi baik melalui props maupun melalui *context*:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

<Sandpack>

Expand Down Expand Up @@ -669,11 +670,12 @@ ul, li { margin: 0; padding: 0; }

</Sandpack>

In the next step, you will remove prop passing.
Pada langkah selanjutnya, Anda akan menghapus penyebaran prop.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

### Step 3: Use context anywhere in the tree {/*step-3-use-context-anywhere-in-the-tree*/}
### Langkah 3: Gunakan *context* di mana saja dalam *tree* {/*step-3-use-context-anywhere-in-the-tree*/}
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
### Langkah 3: Gunakan *context* di mana saja dalam *tree* {/*step-3-use-context-anywhere-in-the-tree*/}
### Langkah 3: Gunakan *context* di mana saja dalam pohon {/*step-3-use-context-anywhere-in-the-tree*/}

We can translate tree into pohon subsequently because we have introduced the word multiple times above.


Now you don't need to pass the list of tasks or the event handlers down the tree:
Sekarang Anda tidak perlu lagi meneruskan daftar tugas atau event handler ke bawah *tree*:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

```js {4-5}
<TasksContext.Provider value={tasks}>
Expand All @@ -685,15 +687,15 @@ Now you don't need to pass the list of tasks or the event handlers down the tree
</TasksContext.Provider>
```

Instead, any component that needs the task list can read it from the `TaskContext`:
Sebaliknya, komponen mana pun yang memerlukan daftar tugas dapat membacanya dari `TaskContext`:

```js {2}
export default function TaskList() {
const tasks = useContext(TasksContext);
// ...
```

To update the task list, any component can read the `dispatch` function from context and call it:
Untuk memperbarui daftar tugas, komponen mana pun dapat membaca fungsi `dispatch` dari *context* dan memanggilnya:

```js {3,9-13}
export default function AddTask() {
Expand All @@ -713,7 +715,7 @@ export default function AddTask() {
// ...
```

**The `TaskApp` component does not pass any event handlers down, and the `TaskList` does not pass any event handlers to the `Task` component either.** Each component reads the context that it needs:
**Komponen `TaskApp` tidak meneruskan event handler ke bawah, dan `TaskList` juga tidak meneruskan event handler ke komponen `Task`.** Setiap komponen membaca *context* yang dibutuhkannya:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

<Sandpack>

Expand Down Expand Up @@ -897,11 +899,11 @@ ul, li { margin: 0; padding: 0; }

</Sandpack>

**The state still "lives" in the top-level `TaskApp` component, managed with `useReducer`.** But its `tasks` and `dispatch` are now available to every component below in the tree by importing and using these contexts.
***State* masih "berada" di dalam komponen `TaskApp` level atas, dikelola dengan `useReducer`.** Tetapi daftar `tugas` dan fungsi `dispatch` sekarang tersedia untuk setiap komponen di bawahnya dalam tree dengan mengimpor dan menggunakan *context* tersebut.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

## Moving all wiring into a single file {/*moving-all-wiring-into-a-single-file*/}
## Memindahkan semua penghubung ke satu file {/*moving-all-wiring-into-a-single-file*/}

You don't have to do this, but you could further declutter the components by moving both reducer and context into a single file. Currently, `TasksContext.js` contains only two context declarations:
Anda tidak harus melakukannya, tetapi Anda dapat membersihkan komponen dengan memindahkan *reducer* dan *context* ke dalam satu file. Saat ini, `TasksContext.js` hanya berisi dua deklarasi *context*:

```js
import { createContext } from 'react';
Expand All @@ -910,11 +912,11 @@ export const TasksContext = createContext(null);
export const TasksDispatchContext = createContext(null);
```

This file is about to get crowded! You'll move the reducer into that same file. Then you'll declare a new `TasksProvider` component in the same file. This component will tie all the pieces together:
File ini akan semakin ramai! Anda akan memindahkan *reducer* ke dalam file yang sama. Kemudian Anda akan mendeklarasikan komponen `TasksProvider` baru dalam file yang sama. Komponen ini akan mengikat semua bagian bersama-sama:
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

1. It will manage the state with a reducer.
2. It will provide both contexts to components below.
3. It will [take `children` as a prop](/learn/passing-props-to-a-component#passing-jsx-as-children) so you can pass JSX to it.
1. Ia akan mengelola *state* dengan *reducer*.
2. Ia akan menyediakan kedua *context* ke komponen di bawahnya.
3. Ia akan mengambil [children sebagai prop](/learn/passing-props-to-a-component#passing-jsx-as-children) sehingga Anda dapat melewatkan JSX padanya.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

```js
export function TasksProvider({ children }) {
Expand All @@ -930,7 +932,7 @@ export function TasksProvider({ children }) {
}
```

**This removes all the complexity and wiring from your `TaskApp` component:**
**Ini menghilangkan semua kompleksitas dan penghubung dari komponen `TaskApp` Anda:**

<Sandpack>

Expand Down Expand Up @@ -1121,7 +1123,7 @@ ul, li { margin: 0; padding: 0; }

</Sandpack>

You can also export functions that _use_ the context from `TasksContext.js`:
Anda juga dapat mengekspor fungsi-fungsi yang *menggunakan* *context* dari `TasksContext.js`:

```js
export function useTasks() {
Expand All @@ -1133,14 +1135,14 @@ export function useTasksDispatch() {
}
```

When a component needs to read context, it can do it through these functions:
Ketika sebuah komponen perlu membaca *context*, dapat dilakukan melalui fungsi-fungsi ini:

```js
const tasks = useTasks();
const dispatch = useTasksDispatch();
```

This doesn't change the behavior in any way, but it lets you later split these contexts further or add some logic to these functions. **Now all of the context and reducer wiring is in `TasksContext.js`. This keeps the components clean and uncluttered, focused on what they display rather than where they get the data:**
Hal ini tidak mengubah perilaku secara apa pun, tetapi memungkinkan Anda untuk memisahkan *context* ini lebih lanjut atau menambahkan beberapa logika ke fungsi-fungsi ini. **Sekarang semua pengaturan *context* dan *reducer* ada di `TasksContext.js`. Ini menjaga komponen tetap bersih dan tidak berantakan, fokus pada apa yang mereka tampilkan daripada dari mana mereka mendapatkan data:**

<Sandpack>

Expand Down Expand Up @@ -1341,26 +1343,27 @@ ul, li { margin: 0; padding: 0; }
</Sandpack>

You can think of `TasksProvider` as a part of the screen that knows how to deal with tasks, `useTasks` as a way to read them, and `useTasksDispatch` as a way to update them from any component below in the tree.
zainfathoni marked this conversation as resolved.
Show resolved Hide resolved
Anda dapat memandang `TasksProvider` sebagai bagian dari layar yang tahu cara menangani tugas, `useTasks` sebagai cara untuk membacanya, dan `useTasksDispatch` sebagai cara untuk memperbaruinya dari komponen mana pun di bawah *tree*.
zainfathoni marked this conversation as resolved.
Show resolved Hide resolved

<Note>

Functions like `useTasks` and `useTasksDispatch` are called *[Custom Hooks.](/learn/reusing-logic-with-custom-hooks)* Your function is considered a custom Hook if its name starts with `use`. This lets you use other Hooks, like `useContext`, inside it.
Fungsi-fungsi seperti `useTasks` dan `useTasksDispatch` disebut dengan *[Custom Hooks](/learn/reusing-logic-with-custom-hooks)*. Fungsi Anda dianggap sebagai custom Hook jika namanya dimulai dengan `use`. Ini memungkinkan Anda menggunakan Hooks lain, seperti `useContext`, di dalamnya.
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved
mhaidarhanif marked this conversation as resolved.
Show resolved Hide resolved

</Note>

As your app grows, you may have many context-reducer pairs like this. This is a powerful way to scale your app and [lift state up](/learn/sharing-state-between-components) without too much work whenever you want to access the data deep in the tree.
Saat aplikasi Anda berkembang, mungkin Anda akan memiliki banyak pasangan _context-reducer_ seperti ini. Ini adalah cara yang kuat untuk meningkatkan aplikasi Anda dan [mengangkat *state* ke atas](/learn/sharing-state-between-components) tanpa terlalu banyak pekerjaan setiap kali Anda ingin mengakses data yang dalam di dalam *tree*.
r17x marked this conversation as resolved.
Show resolved Hide resolved

<Recap>

- You can combine reducer with context to let any component read and update state above it.
- To provide state and the dispatch function to components below:
1. Create two contexts (for state and for dispatch functions).
2. Provide both contexts from the component that uses the reducer.
3. Use either context from components that need to read them.
- You can further declutter the components by moving all wiring into one file.
- You can export a component like `TasksProvider` that provides context.
- You can also export custom Hooks like `useTasks` and `useTasksDispatch` to read it.
- You can have many context-reducer pairs like this in your app.
- Anda dapat menggabungkan *reducer* dengan *context* untuk memungkinkan komponen mana pun membaca dan memperbarui *state* di atasnya.
- Untuk menyediakan *state* dan fungsi *dispatch* ke komponen di bawah:
1. Buat dua *context* (untuk *state* dan untuk fungsi *dispatch*).
2. Sediakan kedua *context* dari komponen yang menggunakan *reducer*.
3. Gunakan salah satu *context* dari komponen yang perlu membacanya.
- Anda dapat memindahkan seluruh penghubung ke satu file untuk memperjelas komponen.
r17x marked this conversation as resolved.
Show resolved Hide resolved
- Anda dapat mengekspor komponen seperti `TasksProvider` yang menyediakan *context*.
- Anda juga dapat mengekspor Custom Hooks seperti `useTasks` dan `useTasksDispatch` untuk membacanya.
- Anda dapat memiliki banyak pasangan *context-reducer* seperti ini di aplikasi Anda.

</Recap>