Julia

15,060 students

56 contributors

15,059
students have developed their Julia skills on Exercism.

Students

15,059

Submissions

178,635

Mentoring Discussions

3,621

The Julia track needs attention ⚠️

Building

Build

Use your knowledge to build the Julia track itself

56 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

163,079

Test Run Pass Rate

28.7% (46769)

Test Run Fail Rate

54.0% (88064)

Test Run Error Rate

17.3% (28246)

Build Analyzers

Build an Analyzer for Julia: 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 127 practice exercises. Find out more.

Usage statistics

56 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

10,169

17,188 (avg. 1.7)

8,352 (82.1%)

0 (0.0%)

Killer Sudoku Helper

1,147

4,648 (avg. 4.1)

205 (17.9%)

30 (2.6%)

Leap

6,011

17,892 (avg. 3.0)

4,025 (67.0%)

1,144 (19.0%)

Nucleotide Count

3,928

18,127 (avg. 4.6)

2,679 (68.2%)

602 (15.3%)

Pangram

2,385

10,817 (avg. 4.5)

1,821 (76.4%)

400 (16.8%)

Rotational Cipher

1,521

10,911 (avg. 7.2)

986 (64.8%)

249 (16.4%)

Difference of Squares

1,584

5,236 (avg. 3.3)

1,370 (86.5%)

172 (10.9%)

Raindrops

1,207

4,477 (avg. 3.7)

1,053 (87.2%)

160 (13.3%)

Secret Handshake

879

4,196 (avg. 4.8)

688 (78.3%)

136 (15.5%)

Clock

749

5,391 (avg. 7.2)

422 (56.3%)

109 (14.6%)

Robot Name

557

3,156 (avg. 5.7)

361 (64.8%)

87 (15.6%)

Darts

1,222

2,274 (avg. 1.9)

1,047 (85.7%)

25 (2.0%)

Hamming

1,642

3,967 (avg. 2.4)

1,362 (82.9%)

47 (2.9%)

RNA Transcription

1,316

3,831 (avg. 2.9)

1,109 (84.3%)

28 (2.1%)

Run-Length Encoding

958

3,848 (avg. 4.0)

681 (71.1%)

24 (2.5%)

Scrabble Score

662

2,295 (avg. 3.5)

562 (84.9%)

18 (2.7%)

Word Count

723

4,401 (avg. 6.1)

521 (72.1%)

24 (3.3%)

ETL

636

1,633 (avg. 2.6)

542 (85.2%)

18 (2.8%)

Reverse String

601

1,910 (avg. 3.2)

505 (84.0%)

12 (2.0%)

Allergies

376

1,527 (avg. 4.1)

290 (77.1%)

11 (2.9%)

Isogram

506

1,520 (avg. 3.0)

439 (86.8%)

9 (1.8%)

Anagram

696

2,098 (avg. 3.0)

551 (79.2%)

17 (2.4%)

Minesweeper

340

2,067 (avg. 6.1)

215 (63.2%)

14 (4.1%)

Binary Search

671

2,204 (avg. 3.3)

376 (56.0%)

15 (2.2%)

Atbash Cipher

494

2,025 (avg. 4.1)

381 (77.1%)

9 (1.8%)

Grains

404

2,364 (avg. 5.9)

334 (82.7%)

5 (1.2%)

Pascal's Triangle

488

1,372 (avg. 2.8)

353 (72.3%)

9 (1.8%)

Collatz Conjecture

525

1,689 (avg. 3.2)

442 (84.2%)

8 (1.5%)

Sieve

367

1,325 (avg. 3.6)

294 (80.1%)

8 (2.2%)

Luhn

404

1,753 (avg. 4.3)

300 (74.3%)

4 (1.0%)

Roman Numerals

378

1,252 (avg. 3.3)

278 (73.5%)

4 (1.1%)

ISBN Verifier

296

1,669 (avg. 5.6)

179 (60.5%)

14 (4.7%)

Trinary

349

882 (avg. 2.5)

301 (86.2%)

2 (0.6%)

Custom Set

255

1,790 (avg. 7.0)

127 (49.8%)

8 (3.1%)

Rational Numbers

252

2,461 (avg. 9.8)

115 (45.6%)

10 (4.0%)

Complex Numbers

324

1,395 (avg. 4.3)

181 (55.9%)

11 (3.4%)

Robot Simulator

298

1,378 (avg. 4.6)

191 (64.1%)

9 (3.0%)

Circular Buffer

177

1,137 (avg. 6.4)

96 (54.2%)

10 (5.6%)

Acronym

319

1,095 (avg. 3.4)

256 (80.3%)

7 (2.2%)

Armstrong Numbers

429

1,106 (avg. 2.6)

358 (83.4%)

8 (1.9%)

Gigasecond

403

618 (avg. 1.5)

323 (80.1%)

12 (3.0%)

Phone Number

477

1,367 (avg. 2.9)

372 (78.0%)

22 (4.6%)

Prime Factors

333

1,054 (avg. 3.2)

251 (75.4%)

12 (3.6%)

Triangle

530

1,417 (avg. 2.7)

424 (80.0%)

19 (3.6%)

Sum of Multiples

161

1,123 (avg. 7.0)

138 (85.7%)

13 (8.1%)

Bob

1,193

2,616 (avg. 2.2)

762 (63.9%)

44 (3.7%)

Resistor Color Trio

307

935 (avg. 3.0)

248 (80.8%)

3 (1.0%)

Perfect Numbers

282

933 (avg. 3.3)

227 (80.5%)

4 (1.4%)

Spiral Matrix

392

1,101 (avg. 2.8)

255 (65.1%)

11 (2.8%)

All Your Base

223

1,272 (avg. 5.7)

149 (66.8%)

3 (1.3%)

Matching Brackets

303

1,094 (avg. 3.6)

222 (73.3%)

11 (3.6%)

Pythagorean Triplet

424

1,558 (avg. 3.7)

298 (70.3%)

20 (4.7%)

Alphametics

111

674 (avg. 6.1)

39 (35.1%)

2 (1.8%)

Largest Series Product

139

1,100 (avg. 7.9)

123 (88.5%)

7 (5.0%)

Saddle Points

133

785 (avg. 5.9)

106 (79.7%)

8 (6.0%)

Square Root

59

145 (avg. 2.5)

37 (62.7%)

2 (3.4%)

3 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Accumulate

67

69 (avg. 1.0)

52 (77.6%)

3 (4.5%)

D&D Character

93

90 (avg. 1.0)

63 (67.7%)

1 (1.1%)

Transpose

204

224 (avg. 1.1)

120 (58.8%)

7 (3.4%)

71 unimplemented practice exercises

Affine Cipher

Bank Account

Binary Search Tree

Book Store

Bottle Song

Bowling

Change

Connect

Crypto Square

DOT DSL

Diamond

Dominoes

Error Handling

Flatten Array

Food Chain

Forth

Go Counting

Grade School

Grep

Hangman

High Scores

House

Kindergarten Garden

Knapsack

Ledger

Lens Person

Linked List

List Ops

Markdown

Matrix

Meetup

Micro Blog

Nth Prime

OCR Numbers

POV

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Pig Latin

Poker

Protein Translation

Proverb

Queen Attack

REST API

Rail Fence Cipher

React

Rectangles

Resistor Color

Resistor Color Duo

SGF Parsing

Satellite

Say

Scale Generator

Series

Simple Cipher

Simple Linked List

Space Age

State of Tic-Tac-Toe

Strain

Sublist

Tournament

Tree Building

Twelve Days

Two Bucket

Two-Fer

Variable Length Quantity

Word Search

Wordy

Yacht

Zebra Puzzle

Zipper

Volunteers

103

SaschaMann

4,992

cmcaine

4,858

tomerarnon

2,990

We 💙 our volunteers

Exercism relies on open-source volunteers to build our language tracks and mentor students.

Become an Exercism Volunteer