Learn BLOCKLY with Real Code Examples

Large workspaces slow down rendering

Custom block shapes increase CPU usage

Excessive event listeners may lag

Theme-heavy apps may affect paint cycles

Use optimized generators for performance

Generated code should be sandboxed

Do not run raw JS without validation

Avoid exposing backend APIs directly

XML import must be sanitized

Follow safe iframe/container setups

Track block usage

Workspace size monitoring

Serialization metrics

User interaction events

Generator performance logs

Keep block definitions modular

Use clear naming conventions

Limit deeply nested blocks

Document generators

Organize toolbox categories logically