How do I install the Mobx Store Implementation skill?

Run npx skillmds@latest add liaosw97/mobx-store-implementation in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Mobx Store Implementation skill do?

实现 MobX stores 进行应用程序状态管理的指导原则 It is listed under Coding & Dev Tools on SkillMD.

Is Mobx Store Implementation safe to use?

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Is Mobx Store Implementation free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Mobx Store Implementation?

liaosw97 (@liaosw97) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Mobx Store Implementation by liaosw97

Name: Mobx Store Implementation
Rating: 4.2 (5 reviews)
Author: liaosw97

File contents

实现 stores 来管理应用程序状态：

定义可观察状态：

使用 @observable 或 makeObservable 定义 store 中需要响应式跟踪的状态。

示例：

import { makeObservable, observable, action, computed } from 'mobx';

class TodoStore {
  @observable todos = [];
  @observable isLoading = false;
  @observable error = null;

  constructor() {
    makeObservable(this);
  }

  // ... actions and computed values
}

利用计算值（@computed）处理派生状态：
- 对于可以从现有可观察状态派生出的数据，使用 @computed 属性。它们是惰性求值的，并且只有在依赖的可观察数据发生变化时才会重新计算。
- 示例：
```
class TodoStore {
  // ...
  @computed
  get completedTodosCount() {
    return this.todos.filter(todo => todo.completed).length;
  }

  @computed
  get uncompletedTodos() {
    return this.todos.filter(todo => !todo.completed);
  }
}
```

使用动作（@action）修改可观察状态：

所有修改 MobX store 可观察状态的函数都应该用 @action 标记。这有助于 MobX 批量更新，提高性能，并使调试更容易。

示例：

class TodoStore {
  // ...
  @action
  addTodo(text: string) {
    this.todos.push({ id: Date.now(), text, completed: false });
  }

  @action
  toggleTodo(id: number) {
    const todo = this.todos.find(t => t.id === id);
    if (todo) {
      todo.completed = !todo.completed;
    }
  }
}

在异步 actions 中实现适当的错误处理：

对于异步操作（如 API 调用），应在 action 中处理加载状态、成功和失败情况，并捕获错误。

示例：

class TodoStore {
  // ...
  @action
  async fetchTodos() {
    this.isLoading = true;
    this.error = null;
    try {
      // 模拟 API 调用
      const response = await new Promise(resolve => 
        setTimeout(() => resolve([{ id: 1, text: 'Learn MobX', completed: false }]), 1000)
      );
      this.todos = response;
    } catch (e) {
      this.error = e;
    } finally {
      this.isLoading = false;
    }
  }
}

Store 的组合：

对于大型应用，可以将多个相关的 store 组合成一个根 store，方便统一管理和访问。

示例：

// RootStore.ts
import { makeObservable, observable } from 'mobx';
import { TodoStore } from './TodoStore';
import { UserStore } from './UserStore';

export class RootStore {
  @observable todoStore: TodoStore;
  @observable userStore: UserStore;

  constructor() {
    makeObservable(this);
    this.todoStore = new TodoStore();
    this.userStore = new UserStore();
  }
}

---name: mobx-store-implementationdescription: 实现 MobX stores 进行应用程序状态管理的指导原则---- **实现 stores 来管理应用程序状态**： - **定义可观察状态**： - 使用 `@observable` 或 `makeObservable` 定义 store 中需要响应式跟踪的状态。 - 示例： ```typescript import { makeObservable, observable, action, computed } from 'mobx'; class TodoStore { @observable todos = []; @observable isLoading = false; @observable error = null; constructor() { makeObservable(this); } // ... actions and computed values } ``` - **利用计算值（`@computed`）处理派生状态**： - 对于可以从现有可观察状态派生出的数据，使用 `@computed` 属性。它们是惰性求值的，并且只有在依赖的可观察数据发生变化时才会重新计算。 - 示例： ```typescript class TodoStore { // ... @computed get completedTodosCount() { return this.todos.filter(todo => todo.completed).length; } @computed get uncompletedTodos() { return this.todos.filter(todo => !todo.completed); } } ``` - **使用动作（`@action`）修改可观察状态**： - 所有修改 MobX store 可观察状态的函数都应该用 `@action` 标记。这有助于 MobX 批量更新，提高性能，并使调试更容易。 - 示例： ```typescript class TodoStore { // ... @action addTodo(text: string) { this.todos.push({ id: Date.now(), text, completed: false }); } @action toggleTodo(id: number) { const todo = this.todos.find(t => t.id === id); if (todo) { todo.completed = !todo.completed; } } } ``` - **在异步 actions 中实现适当的错误处理**： - 对于异步操作（如 API 调用），应在 action 中处理加载状态、成功和失败情况，并捕获错误。 - 示例： ```typescript class TodoStore { // ... @action async fetchTodos() { this.isLoading = true; this.error = null; try { // 模拟 API 调用 const response = await new Promise(resolve => setTimeout(() => resolve([{ id: 1, text: 'Learn MobX', completed: false }]), 1000) ); this.todos = response; } catch (e) { this.error = e; } finally { this.isLoading = false; } } } ``` - **Store 的组合**： - 对于大型应用，可以将多个相关的 store 组合成一个根 store，方便统一管理和访问。 - 示例： ```typescript // RootStore.ts import { makeObservable, observable } from 'mobx'; import { TodoStore } from './TodoStore'; import { UserStore } from './UserStore'; export class RootStore { @observable todoStore: TodoStore; @observable userStore: UserStore; constructor() { makeObservable(this); this.todoStore = new TodoStore(); this.userStore = new UserStore(); } } ```

Frequently asked questions

Mobx Store Implementation