#+title: JavaScript Engines: The Good Parts

- tags :: [[file:../20200720132835-javascript.org][JavaScript]]
- [[https://www.youtube.com/watch?v=5nmpokoRaZI][source]]

* Notes
- Steps for JavaScript interpretation:
  1. Source code -> parser -> AST
  2. AST -> interpreter -> bytecode
  3. interpreter -> optimizer -> optimized code
- V8 interpreter takes profiling data on "hot" functions, optimizes that code
- SpiderMonkey partially optimizes code and then further optimizes code based on
  hot code