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TOPIC OVERVIEW

svelte/Conditional UI Patterns

Show the right part of your interface based on state, user actions, or available data.

12 QuestionsBeginnerHigh Priority ~8 min read

Real applications rarely display the same UI all the time. Svelte provides simple template syntax for conditionally rendering elements and repeatedly rendering lists of data.

These patterns are useful for loading states, error messages, authentication screens, empty states, menus, and dynamic lists. Keeping conditions simple and readable makes components much easier to maintain.

What you'll walk away knowing

How conditional rendering works
How to render lists of dynamic data
How loading, error, and empty states can be handled
How to keep conditional markup readable
1What is the class: directive?Intermediate2What is the class: directive?Intermediate3What does the key block do?Intermediate4How can you dynamically set a component or HTML tag using <svelte:component>?Intermediate5How do you conditionally apply classes in Svelte?Intermediate6What is the purpose of @html directive, and when should you use it cautiously?Intermediate
All Topics
1
Basics
Syntax and Structure
Component Basics
2
Reactivity
Event Handling
Conditional UI Patterns
Bindings
3
Lifecycle Hooks
Slots and Component Communication
Stores and State Sharing
Styling and Transitions
4
SvelteKit Basics
SSR and SPA
Forms and Events
Code Organization
5
Performance and Optimization
Security
Testing and Tooling
Advanced Features
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