pinia
Pinia official Vue state management library, type-safe and extensible. Use when defining stores, working with state/getters/actions, or implementing…
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技能内容
Pinia
Pinia is the official state management library for Vue, designed to be intuitive and type-safe. It supports both Options API and Composition API styles, with first-class TypeScript support and devtools integration.
> The skill is based on Pinia v3.0.4, generated at 2026-01-28.
Core References
| Topic | Description | Reference |
|-------|-------------|-----------|
| Stores | Defining stores, state, getters, actions, storeToRefs, subscriptions | [core-stores](references/core-stores.md) |
Features
Extensibility
| Topic | Description | Reference |
|-------|-------------|-----------|
| Plugins | Extend stores with custom properties, state, and behavior | [features-plugins](references/features-plugins.md) |
Composability
| Topic | Description | Reference |
|-------|-------------|-----------|
| Composables | Using Vue composables within stores (VueUse, etc.) | [features-composables](references/features-composables.md) |
| Composing Stores | Store-to-store communication, avoiding circular dependencies | [features-composing-stores](references/features-composing-stores.md) |
Best Practices
| Topic | Description | Reference |
|-------|-------------|-----------|
| Testing | Unit testing with @pinia/testing, mocking, stubbing | [best-practices-testing](references/best-practices-testing.md) |
| Outside Components | Using stores in navigation guards, plugins, middlewares | [best-practices-outside-component](references/best-practices-outside-component.md) |
Advanced
| Topic | Description | Reference |
|-------|-------------|-----------|
| SSR | Server-side rendering, state hydration | [advanced-ssr](references/advanced-ssr.md) |
| Nuxt | Nuxt integration, auto-imports, SSR best practices | [advanced-nuxt](references/advanced-nuxt.md) |
| HMR | Hot module replacement for development | [advanced-hmr](references/advanced-hmr.md) |
Key Recommendations
- Prefer Setup Stores for complex logic, composables, and watchers
- Use
storeToRefs()when destructuring state/getters to preserve reactivity - Actions can be destructured directly - they're bound to the store
- Call stores inside functions not at module scope, especially for SSR
- Add HMR support to each store for better development experience
- Use
@pinia/testingfor component tests with mocked stores
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