ELIXIR PLAYGROUND

Write a little.Run it now.

You do not need to install Elixir first. Choose an exercise, change a few lines, and press Run. Read both the output and the errors.

No sign-inEditableImmediate outputSafe sandbox

Runnable exercises

Choose one and change one thing

How to practice

After it runs, ask why

This page is for short experiments. Keep full projects on your computer, where Mix can manage files, dependencies, and tests. Distributed nodes and OTP systems also belong in a local project.

Predict first

Write down the output you expect. If the result differs, find the first place it changed.

Change one thing

Change one input, pattern, or timeout, then run it. A small change is easier to understand.

Take it home

Move working code into IEx or a Mix project, then add one test.

Want to keep going on your computer?Create a Mix project and take this code with you.

Install local tools