

Lesson 02 · 10 min
Modules and npm
import/export split code into files, npm brings in other people's.
10 minLesson 2 of 10Practice includedAsk AI on any point
Every file is a separate module with its own scope. What you don't export can't be seen from outside. The modern syntax is ES modules (import/export). The older CommonJS (require/module.exports) still shows up in libraries and configs.
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