What happens behind the scenes when we type www.google.com in a browser?

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Front End interview preparation materials for busy engineers (updated for 2025)

A book series (2 published editions) on the JS language.

A reference system for end to end live streaming video. Capture, encode, package, uplink, origin, CDN, and player.

High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without…

The Go programming language

Python implementation of algorithms from Russell And Norvig's "Artificial Intelligence - A Modern Approach"

ADMM based large scale logistic regression

Predictable state container for React apps written using Hooks

A simple website to doodle in your browser

🗂 The perfect Front-End Checklist for modern websites and meticulous developers

🔥 A highly scalable, offline-first foundation with the best developer experience and a focus on performance and best practices.

Deep Learning for humans

Reference implementations of popular deep learning models.

Automated Canary Service

📚 Freely available programming books

Immutable persistent data collections for Javascript which increase efficiency and simplicity.

Bare bones Promises/A+ implementation

The code that runs openhatch.org

A utility to accurately report the in core memory usage for a program

Papers from the computer science community to read and discuss.

AngularJS service to handle Rest API Restful Resources properly and easily

An End-To-End, Lightweight and Flexible Platform for Game Research

Python Fire is a library for automatically generating command line interfaces (CLIs) from absolutely any Python object.

An attempt to answer the age old interview question "What happens when you type google.com into your browser and press enter?"

A list of back-end related questions you can be inspired from to interview potential candidates, test yourself or completely ignore

Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGadget (https://gitgitgadget.github.io/). Please follow Documen…

Official repository for IPython itself. Other repos in the IPython organization contain things like the website, documentation builds, etc.