Elm impact and status on Exercism

Create the Elm syllabus

Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

Usage statistics

19 concepts being taught

Ba

Basics 1

951 learnt

Ba

Basics 2

775 learnt

Bo

Booleans

546 learnt

Li

Lists

567 learnt

Re

Records

430 learnt

Cu

Custom Types

473 learnt

Tu

Tuples

271 learnt

Ma

Maybe

329 learnt

Re

Result

156 learnt

Pa

Pattern Matching

139 learnt

Le

Let

380 learnt

Di

Dict

87 learnt

Pa

Parsing

34 learnt

Pa

Partial application and function composition

131 learnt

Co

Comparison

57 learnt

Se

Set

42 learnt

Ge

Generics

40 learnt

Op

Opaque Types

32 learnt

Ph

Phantom Types

17 learnt

19 active learning exercises

Started

Attempts

Completions

Mentoring requests

Lucian's Luscious Lasagna

1,084

3,986 (avg. 3.7)

951 (87.7%)

9 (0.8%)

Betty's Bike Shop

833

5,413 (avg. 6.5)

775 (93.0%)

4 (0.5%)

Annalyn's Infiltration

598

4,914 (avg. 8.2)

546 (91.3%)

4 (0.7%)

Tracks on Tracks on Tracks

643

9,567 (avg. 14.9)

567 (88.2%)

13 (2.0%)

Bandwagoner

474

3,822 (avg. 8.1)

430 (90.7%)

5 (1.1%)

Valentines Day

493

2,428 (avg. 4.9)

473 (95.9%)

1 (0.2%)

Tisbury Treasure Hunt

317

4,202 (avg. 13.3)

271 (85.5%)

3 (0.9%)

Role Playing Game

354

5,889 (avg. 16.6)

329 (92.9%)

2 (0.6%)

Go

204

1,891 (avg. 9.3)

156 (76.5%)

4 (2.0%)

Ticket, Please!

160

2,819 (avg. 17.6)

139 (86.9%)

2 (1.3%)

Mario's marvellous lasagna

403

1,429 (avg. 3.5)

380 (94.3%)

1 (0.2%)

Top Scorers

125

2,751 (avg. 22.0)

87 (69.6%)

1 (0.8%)

Paola's Prestigious Pizza

51

1,455 (avg. 28.5)

34 (66.7%)

2 (3.9%)

Monster Attack

145

1,531 (avg. 10.6)

131 (90.3%)

1 (0.7%)

Blorkemon Cards

65

901 (avg. 13.9)

57 (87.7%)

0 (0.0%)

Gotta Snatch'Em All

43

983 (avg. 22.9)

42 (97.7%)

0 (0.0%)

Treasure Chest

41

351 (avg. 8.6)

40 (97.6%)

0 (0.0%)

Secure Treasure Chest

34

176 (avg. 5.2)

32 (94.1%)

0 (0.0%)

Treasure Factory

25

401 (avg. 16.0)

17 (68.0%)

0 (0.0%)

Build Test Runners

Learn More

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

98,327

Test Run Pass Rate

18.0% (17689)

Test Run Fail Rate

29.7% (29226)

Test Run Error Rate

52.3% (51412)

Build Analyzers

Learn More

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

Usage statistics

Total Analyzer Runs

10,754

Total Analysis Comments Made

3,458

Feedback Given Frequency

1.1%

Build Representers

Learn More

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

Usage statistics

Total Representer Runs

10,759

Total Representation Comments Made

0

Feedback Given Frequency

0.0%

Create Practice Exercises

Learn More

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 129 practice exercises. Find out more.

Usage statistics

53 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

3,877

4,909 (avg. 1.3)

3,447 (88.9%)

5 (0.1%)

Two Fer

1,222

2,407 (avg. 2.0)

934 (76.4%)

559 (45.7%)

Bob

1,727

5,273 (avg. 3.1)

1,362 (78.9%)

354 (20.5%)

Leap

1,169

2,479 (avg. 2.1)

1,088 (93.1%)

177 (15.1%)

Space Age

666

1,267 (avg. 1.9)

607 (91.1%)

130 (19.5%)

Sum of Multiples

547

2,401 (avg. 4.4)

468 (85.6%)

102 (18.6%)

Accumulate

701

1,290 (avg. 1.8)

657 (93.7%)

83 (11.8%)

Grade School

350

2,497 (avg. 7.1)

296 (84.6%)

75 (21.4%)

Raindrops

766

1,975 (avg. 2.6)

736 (96.1%)

80 (10.4%)

Robot Simulator

275

1,499 (avg. 5.5)

223 (81.1%)

37 (13.5%)

Allergies

250

965 (avg. 3.9)

202 (80.8%)

38 (15.2%)

Hamming

498

1,193 (avg. 2.4)

430 (86.3%)

20 (4.0%)

Pangram

756

1,871 (avg. 2.5)

693 (91.7%)

40 (5.3%)

Isogram

261

1,218 (avg. 4.7)

217 (83.1%)

12 (4.6%)

Phone Number

315

1,192 (avg. 3.8)

232 (73.7%)

13 (4.1%)

Twelve Days

480

1,076 (avg. 2.2)

305 (63.5%)

92 (19.2%)

Acronym

188

539 (avg. 2.9)

149 (79.3%)

5 (2.7%)

Anagram

485

1,319 (avg. 2.7)

436 (89.9%)

31 (6.4%)

Series

226

1,025 (avg. 4.5)

189 (83.6%)

5 (2.2%)

Atbash Cipher

180

733 (avg. 4.1)

150 (83.3%)

3 (1.7%)

Luhn

155

801 (avg. 5.2)

106 (68.4%)

3 (1.9%)

Grains

232

522 (avg. 2.3)

193 (83.2%)

3 (1.3%)

All Your Base

141

664 (avg. 4.7)

92 (65.2%)

5 (3.5%)

Largest Series Product

160

480 (avg. 3.0)

127 (79.4%)

2 (1.3%)

Triangle

533

1,162 (avg. 2.2)

501 (94.0%)

44 (8.3%)

Pythagorean Triplet

75

598 (avg. 8.0)

49 (65.3%)

1 (1.3%)

Collatz Conjecture

273

489 (avg. 1.8)

212 (77.7%)

3 (1.1%)

Binary Search

169

921 (avg. 5.4)

112 (66.3%)

7 (4.1%)

List Ops

212

758 (avg. 3.6)

176 (83.0%)

8 (3.8%)

Pascal's Triangle

140

329 (avg. 2.4)

97 (69.3%)

3 (2.1%)

Roman Numerals

133

290 (avg. 2.2)

104 (78.2%)

2 (1.5%)

ETL

253

362 (avg. 1.4)

184 (72.7%)

3 (1.2%)

Nucleotide Count

284

455 (avg. 1.6)

241 (84.9%)

6 (2.1%)

Word Count

366

829 (avg. 2.3)

319 (87.2%)

12 (3.3%)

Strain

415

618 (avg. 1.5)

368 (88.7%)

13 (3.1%)

Say

123

575 (avg. 4.7)

89 (72.4%)

2 (1.6%)

Wordy

54

473 (avg. 8.8)

38 (70.4%)

5 (9.3%)

Difference of Squares

717

965 (avg. 1.3)

586 (81.7%)

20 (2.8%)

Gigasecond

420

555 (avg. 1.3)

315 (75.0%)

10 (2.4%)

RNA Transcription

509

833 (avg. 1.6)

408 (80.2%)

19 (3.7%)

Armstrong Numbers

116

329 (avg. 2.8)

93 (80.2%)

3 (2.6%)

Scrabble Score

401

613 (avg. 1.5)

360 (89.8%)

32 (8.0%)

Run-Length Encoding

268

828 (avg. 3.1)

215 (80.2%)

12 (4.5%)

Transpose

114

582 (avg. 5.1)

68 (59.6%)

2 (1.8%)

Matching Brackets

122

364 (avg. 3.0)

85 (69.7%)

6 (4.9%)

Sublist

231

712 (avg. 3.1)

192 (83.1%)

6 (2.6%)

Bowling

24

452 (avg. 18.8)

10 (41.7%)

0 (0.0%)

Complex Numbers

177

1,777 (avg. 10.0)

119 (67.2%)

3 (1.7%)

SGF Parsing

6

166 (avg. 27.7)

4 (66.7%)

1 (16.7%)

Circular Buffer

26

413 (avg. 15.9)

18 (69.2%)

1 (3.8%)

Custom Set

16

200 (avg. 12.5)

11 (68.8%)

0 (0.0%)

Two Bucket

7

136 (avg. 19.4)

4 (57.1%)

0 (0.0%)

Zebra Puzzle

27

274 (avg. 10.1)

4 (14.8%)

1 (3.7%)

76 unimplemented practice exercises

Affine Cipher

Alphametics

Bank Account

Binary Search Tree

Book Store

Bottle Song

Change

Clock

Connect

Crypto Square

D&D Character

DOT DSL

Darts

Diamond

Dominoes

Error Handling

Flatten Array

Food Chain

Forth

Go Counting

Grep

Hangman

High Scores

House

ISBN Verifier

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Ledger

Lens Person

Linked List

Markdown

Matrix

Meetup

Micro Blog

Minesweeper

Nth Prime

OCR Numbers

POV

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Perfect Numbers

Pig Latin

Poker

Prime Factors

Protein Translation

Proverb

Queen Attack

REST API

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

Reverse String

Robot Name

Rotational Cipher

Saddle Points

Satellite

Scale Generator

Secret Handshake

Sieve

Simple Cipher

Simple Linked List

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Tournament

Tree Building

Variable Length Quantity

Word Search

Yacht

Zipper

5,346
students have developed their Elm skills on Exercism.

The Elm track needs attention ⚠️

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Create the Elm syllabus

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Build Test Runners

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Build Analyzers

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Build Representers

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Create Practice Exercises

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5,346 students have developed their Elm skills on Exercism.

The Elm track needs attention ⚠️

Build

Create the Elm syllabus

Usage statistics

Build Test Runners

Usage statistics

Build Analyzers

Usage statistics

Build Representers

Usage statistics

Create Practice Exercises

Usage statistics

We 💙 our volunteers

5,346
students have developed their Elm skills on Exercism.