Most important React.js interview questions for busy Frontend Engineers (updated for 2026)

Top JavaScript interview questions and answers for Frontend Engineers (updated for 2026)

A Collection of application ideas which can be used to improve your coding skills.

Console for mobile browsers

why-did-you-render by Welldone Software monkey patches React to notify you about potentially avoidable re-renders. (Works with React Native as well.)

Flight rules for git

Library for cross-platform app development.

Tools of The Trade, from Hacker News.

🛠️⚡ Step-by-step tutorial to build a modern JavaScript stack.

A set of best practices for JavaScript projects

📚 Study guide and introduction to the modern front end stack.

Jargon from the functional programming world in simple terms!

Some HTML, CSS and JS best practices.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

Open-source JavaScript charting library behind Plotly and Dash

📊 A library of modular chart components built on D3

A modern alternative to CSS resets

pushState + ajax = pjax

Simple, scalable state management.

An ultra-simplified explanation to design patterns

The fast, flexible, and elegant library for parsing and manipulating HTML and XML.

A boilerplate for Node.js web applications