Beginner Code District

Ruby

Elegant code and Rails.

Ruby was designed to make programmers happy, and it shows: code that reads almost like English, where everything is an object and a block can say a lot in one clear line. This track starts from zero: printing and irb, values and symbols, decisions, arrays and hashes, blocks and iterators, then methods, classes, mixins and errors. It ends with Ruby on Rails, the framework behind GitHub and Shopify: a first tour, then models and migrations, views and forms, and tests.

Every lesson is short, checked with quizzes, and full of small programs you can run yourself.

Lessons: 14
Time: 2 h
Level: Beginner

Start the track · Hello, Ruby

Bronze open
Silver open
Gold locked

Ready to prove it?

Three exams are waiting: Bronze, Silver and Gold.

Go to the exams

What you'll be able to do

Write Ruby scripts, run them, and try ideas out in irb
Work with strings, symbols, arrays and hashes the Ruby way
Process collections in one clear line with blocks, map, select and sum
Model your own data with classes, modules and mixins
Raise and rescue errors with begin, rescue and ensure
Read a Rails app: routes, controllers and Active Record queries

The journey

1
Module 1
Ruby basics

Print, store values, make decisions, and process arrays and hashes with blocks.

0 / 6
2
Module 2
Objects and Rails

Methods, classes, mixins and errors, then a first look at Ruby on Rails.

0 / 4
3
Module 3
Next: Rails for real

Migrations and models, views and forms, and tests for a real Rails app.

0 / 4