next
Round
Technologies
Experiences
Contribute
Login
next
Round
Technologies
Experiences
Contribute
Login
Question Loading...
Lifecycle Hooks
1. What is onMount used for?
Level: Expert | Frequency: High
2. What does beforeUpdate do?
Level: Expert | Frequency: High
3. When would you use afterUpdate?
Level: Expert | Frequency: High
4. What is onDestroy and when should you use it?
Level: Expert | Frequency: High
5. Can lifecycle functions be async?
Level: Expert | Frequency: High
All Topics
Basics
Syntax and Structure
Reactivity
Event Handling
Component Basics
Lifecycle Hooks
Slots and Component Communication
Stores and State Sharing
Styling and Transitions
Conditional UI Patterns
SvelteKit Basics
SSR and SPA
Bindings
Forms and Events
Code Organization
Performance and Optimization
Security
Testing and Tooling
Advanced Features