PONY λ M2 Modula-2
for C# programmers

You already know C#.Now explore other languages.

Side-by-side, interactive cheatsheets for C# programmers
comparing C# to other languages. Every example runs live in your browser — no setup, no installation.

▶ Start with Ruby Browse comparisons ↓

Choose your own path by reordering languages

Ruby ⚡ Works Offline ⚡ Offline

What C# developers reach for when they want expressiveness over ceremony. Ruby drops static, explicit types, and boilerplate for a world where everything is an object, blocks replace delegates, and open classes let you add methods to Integer at runtime.

  • Dynamic typing — no type annotations, no compile step; a variable springs into being on assignment and can hold any object at any time
  • Blocks and Enumerable — map, select, reduce, &:upcase replace LINQ's Select/Where/Aggregate without the lambda verbosity
  • Everything is an object — 42.times, nil.nil?, true.class all work; no primitive/boxing distinction
  • Open classes — reopen String, Integer, or any class and add methods at runtime; no extension-method limitation
  • Modules and mixins — include Comparable or Enumerable to gain 50+ methods for free, replacing C# interface boilerplate
  • Postfix conditionals and unlessputs value if valid? reads like plain English; no one-line if (cond) stmt; needed
Rust Pre-Alpha

Demanding but deeply rewarding, Rust proves memory safety and bare-metal speed aren't in opposition.

  • Ownership and borrowing — the idea that replaces garbage collection entirely
  • No runtime, no GC: memory safety enforced at compile time, not at runtime
  • Traits — like Ruby's modules, but verified statically and with zero overhead
  • Result and Option — making failure and absence explicit, not exceptional
  • Pattern matching with match — exhaustive, expressive, and more powerful than Ruby's case
Visual Basic Pre-Alpha

The English-readable .NET language that pioneered RAD — with static typing, LINQ, and the full .NET ecosystem.

  • English-like keywords: If...Then...End If, For Each...Next
  • Case-insensitive identifiers — a surprisingly different mental model
  • AndAlso / OrElse short-circuit logic vs And / Or
  • LINQ query syntax reads like SQL right in your code
  • Nothing for nil, Me for self, MyBase for super
  • Full .NET ecosystem: List(Of T), Dictionary(Of K, V), async/await
GDScript Pre-Alpha

Godot's built-in scripting language — Python-flavored, dynamically typed, no compilation step, and designed around Godot's Node tree. C# developers often use GDScript for rapid prototyping and C# for performance-critical systems within the same Godot project.

  • Dynamic typing by default — var x = 42 is a Variant; opt-in type annotations with var x: int = 42
  • match replaces switch — matches ranges, arrays, dicts, and bind-patterns; far more powerful than C# switch
  • Signals replace events — signal health_changed(new_health) is the observer pattern baked into the engine; no delegates required
  • Lambdas are Callables — var double = func(x): return x * 2 is explicit; invoke with double.call(5) rather than direct application
  • := for typed inference — var count := 42 infers int; without := the variable is untyped Variant
Drag cards to reorder · your order is saved locally