The article details building a minimal JavaScript runtime from scratch using QuickJS, implementing core features like console.log, timers, and file I/O with an event loop. It explains the distinction between a JavaScript engine and a runtime, walking through the process of embedding QuickJS and adding custom APIs. This serves as an educational deep dive into runtime internals rather than announcing a production-ready tool.
Background
QuickJS is a small and embeddable JavaScript engine, often used for lightweight scripting or educational projects to understand runtime construction. Unlike full runtimes like Node.js, it provides just the core engine, requiring developers to build additional APIs and event loops.
- Source
- Lobsters
- Published
- Mar 27, 2026 at 01:09 AM
- Score
- 6.0 / 10