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Practice real frameworks
Pick a framework in the explorer, then work through its challenges — the same skills real engineering teams hire for.
node-js/overviewNode.js
Typescript16 challenges8 skillsupdated 8 days ago
Founded
2009
Creator
Ryan Dahl
// what we offer
Hands-on Node.js exercises that mirror real engineering work — from core fundamentals to the patterns interviewers actually probe. Every challenge is graded automatically and mapped to a skill below.
// what is it
Node.js is a JavaScript runtime that allows developers to execute JavaScript code server-side. Built on Chrome's V8 JavaScript engine, it uses an event-driven, non-blocking I/O model, making it efficient for building scalable network applications. Node.js supports npm, the largest ecosystem of open source libraries, enabling developers to easily manage dependencies and build complex applications.
// environment
// skills covered
event-driven architecturenon-blocking I/Onpm package managementasynchronous programmingRESTful API developmentmiddleware integrationstream handlingchild processes
// companies using it
Netflix
Paypal
Linkedin
Uber
Ebay
Medium
Walmart// deep-dive topics