Pharo

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Pharo is a fun and immersive Smalltalk programming experience. Featuring a clean object-oriented language and a powerful user extendable environment, it focuses on simplicity and immediate feedback (think IDE and OS rolled into one). Its elegance and productivity give it wide reach into banking, education, web development and even robotics.
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Track mentors

0 Mentors

Our mentors are friendly, experienced Pharo developers who will help teach you new techniques and tricks.
Track students

83 Students

Join the many students who have enjoyed learning and improving their skills by taking this track.
Track exercises

34 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Pharo

Class { "A simple SUnit test"
	#name : #HelloWorldTest,
	#superclass : #TestCase }

{ #category : #testing }
HelloWorldTest >> testSayHello [
	self
	    assert: HelloWorld sayHello
	    equals: 'Hello, World!'. ]

Welcome to Pharo, an environment and language that embraces creativity, exploration and fun.

It features a world that is:

  • Simple and Powerful: No constructors, type declarations, interfaces or primitive types. Yet it's a powerful and elegant language with a full syntax that fits on a postcard! The magic is objects and messages all the way down.

  • Live and Immersive: Immediate feedback at any moment of your development: Developing, testing, exploring, debugging. Even in live environments, you don't have to wait to compile and deploy!

  • Amazing for Debugging: The debugger is unlike anything you've seen before. While it lets you step through code, you can also restart execution at any point, create methods and classes on the fly, and even extend its abilities.

  • Rich in History but Forward Looking: Many concepts originated from Smalltalk like: MVC, JIT compilation, Live coding, TDD, Refactoring; however we are still looking ahead with moldable tools, GtSpotter, Agile Visualisation, and MetaLinks to name a few...

  • Active, Friendly, Helpful Community: Pharo is yours, made by an incredible community, with more than 100 contributors on the last revision and many more constantly contributing with frameworks, libraries and advice.

Still not convinced? Pharo has a rich and fascinating history, that has influenced most of today's languages and techniques in one form or another. Learning the source of these ideas is the road to being a good programmer in any language. But most of all, it's just incredibly fun! Why not join in?

Join the Pharo track

Exercism is a great website

Exercism is a great website where I was able to have some very interesting challenges.

Fun. Challenging. Interesting

Community-sourced Pharo exercises

These are a few of the 34 exercises on the Pharo track. You can see all the exercises here.

Sieve
easy
math
lists
loops
Isogram
easy
strings
iteration
Anagram
easy
strings
filtering
Twelve Days
easy
strings
iteration
text formatting
Word Count
easy
strings
iteration
pattern recognition
Tournament
medium
sorting
filtering
iteration
parsing
transforming
object oriented programming
Passionate. Knowledgeable. Creative.

Meet the Pharo Track maintainers

The Pharo Maintainers are the brains behind the Pharo Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Tim Mackinnon

Tim Mackinnon

I'm the co-inventor of Mock Objects, Gold Cards, and many retrospective techniques, but still a developer at heart and using Pharo Smalltalk as a platform to explore further new exciting ideas.
Avatar of Samuel Wilson

Samuel Wilson

A Ruby on Rails dev by day, a Rust and Smalltalk programmer by night. I have found Pharo Smalltalk a delight to use. I'm here to spread the good news.

Get started with the Pharo track. As with everything on Exercism, it's 100% free!

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