Learn SCRATCH with Real Code Examples
Updated Nov 25, 2025
Performance Notes
Runs in a browser VM
Excessive clones may slow execution
High-resolution costumes reduce performance
Loops with heavy logic may lag
Optimized for education, not speed
Security Notes
Runs in a sandboxed environment
No file system access
No network access from scripts
Safe moderated community
Requires account for sharing
Monitoring Analytics
Sprite position tracking
Variable displays
Broadcast message flow
Script performance in editor
TurboWarp profiling
Code Quality
Organize scripts by function
Use comments
Split logic using broadcasts
Keep variable names clear
Avoid overlapping scripts