Angular UI Patterns

Core Principles

1. Never show stale UI - Loading states only when actually loading
2. Always surface errors - Users must know when something fails
3. Optimistic updates - Make the UI feel instant
4. Progressive disclosure - Use @defer to show content as available
5. Graceful degradation - Partial data is better than no data

Loading State Patterns

The Golden Rule

Show loading indicator ONLY when there's no data to display.