Pharo

851 students

23 contributors

851
students have developed their Pharo skills on Exercism.

Students

851

Submissions

3,892

Mentoring Discussions

495

The Pharo track needs attention ⚠️

Building

Build

Use your knowledge to build the Pharo track itself

23 contributors

Build Test Runners

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Usage statistics

Total Test Runner Runs

304

Test Run Pass Rate

89.1% (271)

Test Run Fail Rate

3.3% (10)

Test Run Error Rate

7.6% (23)

Build Analyzers

Build an Analyzer for Pharo: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

Build Representers

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Next goal: Build a Representer. Find out more.

Create Practice Exercises

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Next goal: Implement at least 50 practice exercises. Find out more.

Usage statistics

42 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

453

453 (avg. 1.0)

269 (59.4%)

0 (0.0%)

Two Fer

257

352 (avg. 1.4)

202 (78.6%)

90 (35.0%)

Leap

193

294 (avg. 1.5)

168 (87.0%)

68 (35.2%)

Reverse String

174

219 (avg. 1.3)

134 (77.0%)

52 (29.9%)

Isogram

132

193 (avg. 1.5)

118 (89.4%)

39 (29.5%)

Grains

120

177 (avg. 1.5)

100 (83.3%)

37 (30.8%)

Allergies

94

140 (avg. 1.5)

70 (74.5%)

30 (31.9%)

Matrix

65

104 (avg. 1.6)

56 (86.2%)

20 (30.8%)

Grade School

69

96 (avg. 1.4)

49 (71.0%)

20 (29.0%)

Forth

55

71 (avg. 1.3)

28 (50.9%)

15 (27.3%)

Resistor Color Duo

60

89 (avg. 1.5)

52 (86.7%)

7 (11.7%)

Space Age

85

127 (avg. 1.5)

66 (77.6%)

12 (14.1%)

Armstrong Numbers

65

88 (avg. 1.4)

54 (83.1%)

7 (10.8%)

Twelve Days

51

64 (avg. 1.3)

34 (66.7%)

6 (11.8%)

Clock

51

88 (avg. 1.7)

35 (68.6%)

9 (17.6%)

Darts

41

57 (avg. 1.4)

33 (80.5%)

2 (4.9%)

Raindrops

42

74 (avg. 1.8)

38 (90.5%)

4 (9.5%)

ISBN Verifier

38

49 (avg. 1.3)

27 (71.1%)

4 (10.5%)

Sum of Multiples

44

69 (avg. 1.6)

39 (88.6%)

4 (9.1%)

Matching Brackets

41

57 (avg. 1.4)

31 (75.6%)

6 (14.6%)

Acronym

56

71 (avg. 1.3)

45 (80.4%)

4 (7.1%)

ETL

37

46 (avg. 1.2)

29 (78.4%)

3 (8.1%)

Flatten Array

37

48 (avg. 1.3)

27 (73.0%)

4 (10.8%)

Hamming

38

55 (avg. 1.4)

31 (81.6%)

4 (10.5%)

High Scores

35

43 (avg. 1.2)

27 (77.1%)

1 (2.9%)

Diamond

32

46 (avg. 1.4)

22 (68.8%)

4 (12.5%)

Proverb

28

34 (avg. 1.2)

23 (82.1%)

2 (7.1%)

Roman Numerals

34

40 (avg. 1.2)

26 (76.5%)

4 (11.8%)

Pangram

34

47 (avg. 1.4)

29 (85.3%)

3 (8.8%)

Secret Handshake

28

38 (avg. 1.4)

23 (82.1%)

2 (7.1%)

Anagram

47

54 (avg. 1.1)

36 (76.6%)

3 (6.4%)

Binary

41

56 (avg. 1.4)

32 (78.0%)

4 (9.8%)

Collatz Conjecture

33

48 (avg. 1.5)

26 (78.8%)

1 (3.0%)

Atbash Cipher

37

57 (avg. 1.5)

28 (75.7%)

2 (5.4%)

Sieve

30

47 (avg. 1.6)

26 (86.7%)

3 (10.0%)

Luhn

28

40 (avg. 1.4)

23 (82.1%)

2 (7.1%)

Word Count

29

43 (avg. 1.5)

26 (89.7%)

3 (10.3%)

Minesweeper

27

35 (avg. 1.3)

20 (74.1%)

4 (14.8%)

Robot Simulator

27

54 (avg. 2.0)

22 (81.5%)

2 (7.4%)

Bowling

28

30 (avg. 1.1)

15 (53.6%)

3 (10.7%)

Tournament

25

37 (avg. 1.5)

19 (76.0%)

2 (8.0%)

Die

60

62 (avg. 1.0)

31 (51.7%)

4 (6.7%)

88 unimplemented practice exercises

Affine Cipher

All Your Base

Alphametics

Bank Account

Binary Search

Binary Search Tree

Bob

Book Store

Bottle Song

Change

Circular Buffer

Complex Numbers

Connect

Crypto Square

Custom Set

D&D Character

DOT DSL

Difference of Squares

Dominoes

Error Handling

Food Chain

Gigasecond

Go Counting

Grep

Hangman

House

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Largest Series Product

Ledger

Lens Person

Linked List

List Ops

Markdown

Meetup

Micro Blog

Nth Prime

Nucleotide Count

OCR Numbers

POV

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Pascal's Triangle

Perfect Numbers

Phone Number

Pig Latin

Poker

Prime Factors

Protein Translation

Pythagorean Triplet

Queen Attack

REST API

RNA Transcription

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Trio

Robot Name

Rotational Cipher

Run-Length Encoding

SGF Parsing

Saddle Points

Satellite

Say

Scale Generator

Scrabble Score

Series

Simple Cipher

Simple Linked List

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Transpose

Tree Building

Triangle

Two Bucket

Variable Length Quantity

Word Search

Wordy

Yacht

Zebra Puzzle

Zipper

Volunteers

26

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3,197

glennj

1,534

bencoman

1,121

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