Crystal Tutorials

In this tutorial, you'll learn about Crystal Tutorials. We cover key concepts, practical examples, and best practices to help you understand and apply this topic effectively.

Crystal is a compiled language with Ruby-like syntax, type inference, and native performance through LLVM. It's ideal for web applications and systems programming.

1. Crystal: Ruby-Inspired Compiled Language

Ruby-like syntax, native compilation, type inference, fibers, C bindings, Amber/Lucky

Published Topics

Crystal Intro

✓ Live

Crystal Data Types — Numbers, Strings, Arrays, Hashes, and Named Tuples

Learn Crystal's type system: primitive types, strings, arrays, hashes, named tuples, unions, and nilable types with compile-time type safety.

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Crystal Control Flow — if, unless, case, while, and until

Learn Crystal's control flow: branching with if/unless/ternary, pattern matching with case, and loops with while/until.

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Crystal Methods — Def, Return Types, Named Arguments and Blocks

Learn Crystal method definitions: def with return types, named/default arguments, blocks and yields, splats, and overload resolution.

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Crystal Classes — Inheritance, Abstract Classes, and Method Overrides

Learn Crystal classes: instance variables, inheritance, abstract methods, method overriding, and the type hierarchy.

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Crystal HTTP Server — Building Web APIs with the Standard Library

Learn Crystal's HTTP server: creating HTTP servers and clients, routing requests, JSON APIs, middleware, and WebSocket support.

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Crystal JSON — Parsing, Serialization, and Mapping

Learn Crystal JSON handling: parsing strings, mapping to objects, serializing structs, and the JSON.mapping macro.

✓ Live

All 7 topics in Crystal Tutorials are published.