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

747 learnt

Ba

Basics 2

611 learnt

Bo

Booleans

421 learnt

Li

Lists

436 learnt

Re

Records

340 learnt

Cu

Custom Types

365 learnt

Tu

Tuples

233 learnt

Ma

Maybe

265 learnt

Re

Result

114 learnt

Pa

Pattern Matching

107 learnt

Le

Let

269 learnt

Di

Dict

58 learnt

Pa

Parsing

21 learnt

Pa

Partial application and function composition

63 learnt

Co

Comparison

33 learnt

Se

Set

20 learnt

Ge

Generics

17 learnt

Op

Opaque Types

10 learnt

Ph

Phantom Types

7 learnt

19 active learning exercises

Started

Attempts

Completions

Mentoring requests

Lucian's Luscious Lasagna

858

3,174 (avg. 3.7)

747 (87.1%)

9 (1.0%)

Betty's Bike Shop

653

4,298 (avg. 6.6)

611 (93.6%)

3 (0.5%)

Annalyn's Infiltration

464

3,852 (avg. 8.3)

421 (90.7%)

4 (0.9%)

Tracks on Tracks on Tracks

501

7,431 (avg. 14.8)

436 (87.0%)

11 (2.2%)

Bandwagoner

371

2,968 (avg. 8.0)

340 (91.6%)

5 (1.3%)

Valentines Day

377

1,846 (avg. 4.9)

365 (96.8%)

1 (0.3%)

Tisbury Treasure Hunt

276

3,794 (avg. 13.7)

233 (84.4%)

3 (1.1%)

Role Playing Game

281

4,502 (avg. 16.0)

265 (94.3%)

2 (0.7%)

Go

154

1,285 (avg. 8.3)

114 (74.0%)

3 (1.9%)

Ticket, Please!

123

2,154 (avg. 17.5)

107 (87.0%)

2 (1.6%)

Mario's marvellous lasagna

286

1,073 (avg. 3.8)

269 (94.1%)

1 (0.3%)

Top Scorers

86

1,856 (avg. 21.6)

58 (67.4%)

1 (1.2%)

Paola's Prestigious Pizza

27

758 (avg. 28.1)

21 (77.8%)

0 (0.0%)

Monster Attack

71

766 (avg. 10.8)

63 (88.7%)

0 (0.0%)

Blorkemon Cards

37

536 (avg. 14.5)

33 (89.2%)

0 (0.0%)

Gotta Snatch'Em All

21

387 (avg. 18.4)

20 (95.2%)

0 (0.0%)

Treasure Chest

19

118 (avg. 6.2)

17 (89.5%)

0 (0.0%)

Secure Treasure Chest

12

58 (avg. 4.8)

10 (83.3%)

0 (0.0%)

Treasure Factory

8

32 (avg. 4.0)

7 (87.5%)

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

79,337

Test Run Pass Rate

18.4% (14607)

Test Run Fail Rate

31.2% (24792)

Test Run Error Rate

50.3% (39938)

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

8,355

Total Analysis Comments Made

2,098

Feedback Given Frequency

0.9%

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

8,358

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

3,596

4,410 (avg. 1.2)

3,186 (88.6%)

5 (0.1%)

Two Fer

1,194

2,314 (avg. 1.9)

914 (76.5%)

559 (46.8%)

Bob

1,709

5,047 (avg. 3.0)

1,353 (79.2%)

354 (20.7%)

Leap

1,151

2,357 (avg. 2.0)

1,073 (93.2%)

177 (15.4%)

Space Age

656

1,217 (avg. 1.9)

598 (91.2%)

130 (19.8%)

Sum of Multiples

533

2,282 (avg. 4.3)

457 (85.7%)

101 (18.9%)

Accumulate

691

1,274 (avg. 1.8)

649 (93.9%)

83 (12.0%)

Grade School

340

2,203 (avg. 6.5)

286 (84.1%)

75 (22.1%)

Raindrops

755

1,830 (avg. 2.4)

728 (96.4%)

79 (10.5%)

Robot Simulator

264

1,273 (avg. 4.8)

215 (81.4%)

36 (13.6%)

Allergies

242

884 (avg. 3.7)

197 (81.4%)

38 (15.7%)

Hamming

488

1,065 (avg. 2.2)

422 (86.5%)

20 (4.1%)

Pangram

750

1,770 (avg. 2.4)

688 (91.7%)

40 (5.3%)

Isogram

245

988 (avg. 4.0)

203 (82.9%)

12 (4.9%)

Phone Number

307

1,051 (avg. 3.4)

228 (74.3%)

13 (4.2%)

Twelve Days

475

1,061 (avg. 2.2)

300 (63.2%)

92 (19.4%)

Acronym

182

527 (avg. 2.9)

145 (79.7%)

5 (2.7%)

Anagram

469

1,096 (avg. 2.3)

426 (90.8%)

31 (6.6%)

Series

221

1,006 (avg. 4.6)

186 (84.2%)

5 (2.3%)

Atbash Cipher

177

719 (avg. 4.1)

148 (83.6%)

3 (1.7%)

Luhn

151

783 (avg. 5.2)

103 (68.2%)

3 (2.0%)

Grains

226

480 (avg. 2.1)

187 (82.7%)

3 (1.3%)

All Your Base

137

663 (avg. 4.8)

91 (66.4%)

5 (3.6%)

Largest Series Product

159

479 (avg. 3.0)

126 (79.2%)

2 (1.3%)

Triangle

524

1,036 (avg. 2.0)

491 (93.7%)

43 (8.2%)

Pythagorean Triplet

74

594 (avg. 8.0)

49 (66.2%)

1 (1.4%)

Collatz Conjecture

268

463 (avg. 1.7)

208 (77.6%)

3 (1.1%)

Binary Search

159

715 (avg. 4.5)

106 (66.7%)

6 (3.8%)

List Ops

202

481 (avg. 2.4)

167 (82.7%)

8 (4.0%)

Pascal's Triangle

139

329 (avg. 2.4)

97 (69.8%)

3 (2.2%)

Roman Numerals

131

289 (avg. 2.2)

103 (78.6%)

2 (1.5%)

ETL

249

350 (avg. 1.4)

181 (72.7%)

3 (1.2%)

Nucleotide Count

281

454 (avg. 1.6)

240 (85.4%)

6 (2.1%)

Word Count

365

829 (avg. 2.3)

319 (87.4%)

12 (3.3%)

Strain

413

610 (avg. 1.5)

368 (89.1%)

13 (3.1%)

Say

121

560 (avg. 4.6)

89 (73.6%)

2 (1.7%)

Wordy

52

360 (avg. 6.9)

37 (71.2%)

5 (9.6%)

Difference of Squares

714

962 (avg. 1.3)

583 (81.7%)

20 (2.8%)

Gigasecond

418

538 (avg. 1.3)

313 (74.9%)

10 (2.4%)

RNA Transcription

508

829 (avg. 1.6)

407 (80.1%)

19 (3.7%)

Armstrong Numbers

114

328 (avg. 2.9)

92 (80.7%)

3 (2.6%)

Scrabble Score

399

613 (avg. 1.5)

360 (90.2%)

32 (8.0%)

Run-Length Encoding

267

827 (avg. 3.1)

215 (80.5%)

12 (4.5%)

Transpose

112

557 (avg. 5.0)

68 (60.7%)

2 (1.8%)

Matching Brackets

121

364 (avg. 3.0)

85 (70.2%)

6 (5.0%)

Sublist

225

584 (avg. 2.6)

187 (83.1%)

6 (2.7%)

Bowling

21

450 (avg. 21.4)

10 (47.6%)

0 (0.0%)

Complex Numbers

123

1,249 (avg. 10.2)

80 (65.0%)

2 (1.6%)

SGF Parsing

4

71 (avg. 17.8)

3 (75.0%)

1 (25.0%)

Circular Buffer

18

209 (avg. 11.6)

12 (66.7%)

1 (5.6%)

Custom Set

9

64 (avg. 7.1)

7 (77.8%)

0 (0.0%)

Two Bucket

6

8 (avg. 1.3)

2 (33.3%)

0 (0.0%)

Zebra Puzzle

13

169 (avg. 13.0)

3 (23.1%)

0 (0.0%)

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

5,054
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

5,054 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

5,054
students have developed their Elm skills on Exercism.