crystal
Crystal
Crystal compiles to native code (using LLVM) but looks exactly like Ruby. v1.12 continues improving Windows support and parallelism.
When to Use
- Performance sensitive Rubyists: Porting heavy Ruby scripts to Crystal for 50x speedup.
- Microservices: Low memory footprint compared to JVM/Ruby.
- CLI Tools: Fast startup and execution.
Core Concepts
Fibers
Lightweight concurrency (like Go routines). spawn { ... }.
Macros
Generate code at compile time (like Zig/Lisp).
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