Learn to Code

PHP explanations focused on common misconceptions

A collection of games teaching web-development concepts

Coding courses and articles with practical exercises

Regular-expression lessons with matching exercises

Coding courses and articles across current developer workflows

SQL questions and explanations using one consistent dataset

A programming problem archive with difficulty guidance

A Clojure learning book with further programming resources

A collaborative guide to implementing algorithms

Short Java exercises grouped by language technique

Operating-system concepts supported by projects and exercises

Programming tutorials with topic-specific exercise collections

Interactive explanations of algorithms used in games

A JavaScript learning book with an online reading version

Small interactive coding challenges

Developer roadmaps organized by role and technical skill

Illustrated technical-interview courses

An interactive deep-learning book joining code and mathematics

Developer-oriented machine-learning tutorials and project guides

Programming contests with a permanent practice entry point

A coding problem bank with topic and difficulty choices

A contest community with a reusable programming problemset

Developer courses arranged into focused learning paths

WebGL articles built around basic graphics principles