Interactive Ruby (irb)

Lesson in the Ruby Roadmap · Stage 14: Interactive Ruby (irb)

Last updated 14 September 2026

What is Interactive Ruby (irb)?

Interactive Ruby (irb) is a command-line tool that allows you to execute Ruby code interactively. It provides a read-eval-print loop (REPL) environment where you can type in Ruby expressions, and irb will immediately evaluate and display the result. This makes it a valuable tool for experimenting with code, testing ideas, and quickly checking the behavior of Ruby methods and objects.

Study this in the interactive course See the whole Ruby roadmap

Free resources to learn Interactive Ruby (irb)

ArticleHow To Use IRB to Explore Ruby
ArticleInteractive Ruby
ArticleInteractive Ruby
VideoInteractive Ruby (irb) | Ruby | Tutorial 35

Interactive Ruby (irb): common questions

Can I learn Interactive Ruby (irb) in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Interactive Ruby (irb) in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Interactive Ruby (irb) tutorial for beginners?

It is lesson 48 of 102 in the free Ruby roadmap, in stage 14, Interactive Ruby (irb). If you are new to Ruby, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.