Learning workspace

Learn by reading, running, and solving.

Practice programming with topic explanations, exercises, browser IDE tools, regex checks, and code typing drills in one workspace.

Start with exercises

Practice tracks

Explore topics with short explanations, examples, and ordered exercises.

Browse exercises

Test patterns

Compare regular expression behavior across engines and inspect matches visually.

Open Regex Tester

How this workspace works

  • Open tools in tabs. Exercises, IDE tools, and trainers stay available as site tabs.
  • Switch without losing context. Move between explanations, code, and utilities while keeping your place.
  • Use the sidebar as your map. The left panels hold navigation, settings, files, libraries, and tool controls.

One IDE, three practical modes

  • Python in the browser. Run small scripts, try libraries, and practice API requests without installing anything.
  • JavaScript for quick experiments. Test browser-friendly code and compare ideas next to your learning materials.
  • SQLite for data practice. Open the database explorer to inspect tables, write queries, and learn SQL workflows locally.

Work side by side with split tabs

  • Keep instructions visible. Open an exercise or reference page beside the IDE instead of jumping back and forth.
  • Compare tools while you learn. Place regex checks, explanations, and code experiments next to each other when the task needs it.
  • Close the split when you are done. The workspace returns to a single focused tab, and your open site tabs remain available.