Programming Language Questions Answered

Direct, dataset-backed answers to common questions about what programming languages are written in, how compilers are bootstrapped, and how languages relate to each other.

What is X written in?

What is Python written in? What is JavaScript written in? What is Rust written in? What is Go written in? What is Java written in? What is C written in? What is C++ written in? What is TypeScript written in? What is Ruby written in? What is V8 written in? What is CPython written in?

Concepts

What is compiler bootstrapping? What is a self-hosting compiler?
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