Learn PASCAL with Real Code Examples

Use local variables for speed

Avoid unnecessary string operations

Use optimized units or inline functions

Object Pascal may introduce overhead vs pure Pascal

Free Pascal supports optimization flags

Avoid unsafe pointer operations

Use strong typing to prevent unexpected casting

Validate input in systems using read/readln

Sandbox legacy code when integrating into new systems

Be cautious when calling external libraries (DLL/SO)

Performance profiling via Delphi tools

Memory leak detection (FastMM)

Event timing logs

Cross-unit dependency analysis

Code coverage tools

Keep units small and focused

Avoid global variables

Use records/objects for clarity

Document procedures thoroughly

Write testable modular code