Programming Language Features

A collection of demos showcasing interesting and useful programming language features that every developer should know about.

Purpose

This repository provides hands-on examples of language features that solve real-world problems. Each demo is self-contained with Docker support for easy testing without local setup.

Available Demos

Feature	Language	Version	Description
SensitiveParameter	PHP	8.2+	Redact sensitive data from stack traces
runtime/secret	Go	1.26+	Secure memory erasure for forward secrecy
Units of Measure	F#	.NET 6+	Compile-time type safety for physical units
Type Ranges	Ada	GNAT	Compile-time and runtime safety with range-constrained types

How to Use

Each feature has its own directory containing:

• README.md - Feature explanation and usage instructions
• Dockerfile - Containerized environment for running the demo
• Demo scripts - Working examples showing the feature in action

Quick Start

# Navigate to a feature directory
cd php-sensitive-parameter/

# Build the Docker image
docker build -t php-sensitive-parameter .

# Run the demos
docker run --rm php-sensitive-parameter

Contributing

Want to add a feature demo? Each demo should:

1. Solve a real problem developers face
2. Include before/after examples when applicable
3. Be runnable via Docker
4. Include clear documentation

License

MIT License - see LICENSE for details.