Node.js FAQ: Top Questions
48. What is Node.js code caching?
Code caching in Node.js, via V8’s code cache, stores compiled JavaScript bytecode to reduce startup time for frequently executed modules.
-
Mechanism:
V8 caches bytecode in memory or disk (with
--code-cache). - Benefits: Faster module loading, reduced CPU usage.
-
Tools:
v8-compile-cache, ESBuild for precompilation. - Use Case: Large applications, serverless.