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Node.js notes for developers

Master Node.js with a curated set of 3 developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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Node.js

Interview Questions

Node.js Interview Questions Fundamentals 1. What is Node.js? Node.js is a JavaScript runtime built on Chrome's V8 engine. It enables JavaScript to run on the se…

Node.js

Event Loop & Async Programming

Node.js Event Loop & Async Programming The event loop is the heart of Node.js. It enables non-blocking I/O operations despite JavaScript being single-threaded. …

Node.js

Modules & NPM Ecosystem

Node.js Modules & NPM CommonJS vs ES Modules // CommonJS (default in Node.js) // utils.js function add(a, b) { return a + b; } module.exports = { add }; // or: …

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