Context vs Stores: When to Use Each
Compare context and stores for sharing state in different scenarios.
Context vs Stores: When to Use Each is a free Sveltejs Academy lesson on CoddyKit — lesson 2 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Sveltejs Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Two Patterns
Stores share across the entire app; context shares within a specific subtree.
Global Use Cases
Stores fit cross-cutting concerns: current user, theme, notifications.
Scoped Use Cases
Context fits per-instance state: a form component sharing its registry with descendants.
Instance Isolation
If you mount two Form instances, each has its own context. Stores would share state across both.
SSR Considerations
Stores can leak state across requests in SSR if not careful. Context is request-safe by being instance-scoped.
Reactive Context
Pass a store via context for reactive subtree-scoped state.
Avoid Mixing
Pick one mechanism per concern to keep code predictable.
Component Libraries
Compound components like Tabs and Accordion use context heavily for sibling coordination.
Dependency Injection
Context is perfect for injecting services or config from a wrapper into all children.
Testing
Context is easier to substitute in tests by swapping the wrapper component.
Decision Tree
App-wide and singleton: store. Per-instance or per-feature subtree: context.
Quick Check
When is context preferred over a store?
Recap
Stores for global, context for scoped. Use context for compound components and dependency injection.
Frequently asked questions
Is the “Context vs Stores: When to Use Each” lesson free?
Yes — the full text of “Context vs Stores: When to Use Each” is free to read here on the web, and the Sveltejs Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Sveltejs Academy course, upgrade to CoddyKit PRO.
What will I learn in “Context vs Stores: When to Use Each”?
Compare context and stores for sharing state in different scenarios. You practise Sveltejs Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Sveltejs Academy?
No prior experience is required. Sveltejs Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 2 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Context vs Stores: When to Use Each” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Sveltejs Academy lesson?
Yes. Every Sveltejs Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- setContext() and getContext()
- Context vs Stores: When to Use Each
- Typed Context with TypeScript
- Context for Dependency Injection