Swift impact and status on Exercism

Create the Swift 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 50 concepts. Find out more.

Usage statistics

41 concepts being taught

Ca

Capturing

197 learnt

Cl

Closures

197 learnt

Sh

Shorthand arguments

197 learnt

Tr

Trailing closures

197 learnt

Ch

Characters

1,187 learnt

Nu

Numbers

1,209 learnt

Di

Dictionaries

278 learnt

Ba

Basics

2,510 learnt

Co

Constants

2,510 learnt

Fu

Functions

2,510 learnt

Ty

Type Annotations

2,510 learnt

Va

Variables

2,510 learnt

De

Default Parameters

379 learnt

Fu

Function Overloading

379 learnt

In

Inout Parameters

379 learnt

Mu

Multiple Return Values

379 learnt

Ne

Nested Functions

379 learnt

Va

Variadic Parameters

379 learnt

En

Enumerations

177 learnt

Co

Contro transfer

257 learnt

fo

for loops

257 learnt

Lo

Loops

257 learnt

re

repeat while

257 learnt

wh

while loops

257 learnt

Ar

Arrays

554 learnt

Op

Optionals

377 learnt

Im

Importing

248 learnt

St

String Components

248 learnt

St

String Indexing

248 learnt

Tu

Tuples

475 learnt

Es

Escaping functions

703 learnt

Hi

Higher Order Functions

703 learnt

Bo

Booleans

872 learnt

Co

Conditionals Guard

872 learnt

Co

Conditionals If

872 learnt

Co

Conditionals Switch

872 learnt

Te

Ternary operator

872 learnt

Me

Methods

202 learnt

Se

Self

202 learnt

St

Structs And Classes

202 learnt

Va

Value and reference types

202 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Double-Null0111: Closures Are Forever

228

1,293 (avg. 5.7)

197 (86.4%)

7 (3.1%)

Cal's Custom Sign Shop

1,417

11,677 (avg. 8.2)

1,187 (83.8%)

5 (0.4%)

Freelancer Rates

1,707

22,028 (avg. 12.9)

1,209 (70.8%)

13 (0.8%)

High Score Board

301

1,502 (avg. 5.0)

278 (92.4%)

3 (1.0%)

Layers of Lasagna

3,805

22,511 (avg. 5.9)

2,510 (66.0%)

20 (0.5%)

Lasagna Master

403

3,011 (avg. 7.5)

379 (94.0%)

9 (2.2%)

Log Lines

184

633 (avg. 3.4)

177 (96.2%)

2 (1.1%)

Master Mixologist

283

2,716 (avg. 9.6)

257 (90.8%)

5 (1.8%)

Magician-in-Training

658

9,181 (avg. 14.0)

554 (84.2%)

11 (1.7%)

Slice Sizing

424

4,751 (avg. 11.2)

377 (88.9%)

13 (3.1%)

The 1st Rule of Poetry Club

289

2,411 (avg. 8.3)

248 (85.8%)

3 (1.0%)

Santa's Swifty Helper

493

1,651 (avg. 3.3)

475 (96.3%)

4 (0.8%)

Secret Agent Double-Null0111

876

3,947 (avg. 4.5)

703 (80.3%)

8 (0.9%)

Vexing Vehicle Purchase

1,227

12,800 (avg. 10.4)

872 (71.1%)

17 (1.4%)

Windowing System

231

2,055 (avg. 8.9)

202 (87.4%)

4 (1.7%)

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

152,149

Test Run Pass Rate

18.8% (28660)

Test Run Fail Rate

19.2% (29215)

Test Run Error Rate

62.0% (94274)

Build Analyzers

Learn More

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

Next goal: Build an Analyzer. Find out more.

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.

Next goal: Build a Representer. Find out more.

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 130 practice exercises. Find out more.

Usage statistics

83 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

10,714

23,434 (avg. 2.2)

7,941 (74.1%)

16 (0.1%)

Difference of Squares

1,625

4,683 (avg. 2.9)

1,118 (68.8%)

211 (13.0%)

Gigasecond

1,676

2,912 (avg. 1.7)

1,131 (67.5%)

272 (16.2%)

Leap

2,583

4,563 (avg. 1.8)

2,193 (84.9%)

575 (22.3%)

RNA Transcription

1,049

2,211 (avg. 2.1)

852 (81.2%)

146 (13.9%)

Space Age

786

1,242 (avg. 1.6)

681 (86.6%)

90 (11.5%)

Sum of Multiples

883

1,911 (avg. 2.2)

744 (84.3%)

113 (12.8%)

Two Fer

2,117

3,225 (avg. 1.5)

1,663 (78.6%)

920 (43.5%)

Accumulate

776

1,266 (avg. 1.6)

560 (72.2%)

39 (5.0%)

Bob

780

1,877 (avg. 2.4)

670 (85.9%)

84 (10.8%)

ETL

606

916 (avg. 1.5)

541 (89.3%)

18 (3.0%)

Grade School

576

1,108 (avg. 1.9)

481 (83.5%)

22 (3.8%)

Grains

554

1,252 (avg. 2.3)

482 (87.0%)

59 (10.6%)

Hamming

736

1,333 (avg. 1.8)

692 (94.0%)

72 (9.8%)

Isogram

455

868 (avg. 1.9)

384 (84.4%)

15 (3.3%)

List Ops

331

632 (avg. 1.9)

227 (68.6%)

11 (3.3%)

Nucleotide Count

926

1,463 (avg. 1.6)

687 (74.2%)

61 (6.6%)

Raindrops

621

990 (avg. 1.6)

526 (84.7%)

28 (4.5%)

Binary Search

255

468 (avg. 1.8)

200 (78.4%)

1 (0.4%)

Circular Buffer

172

501 (avg. 2.9)

128 (74.4%)

3 (1.7%)

Clock

371

650 (avg. 1.8)

296 (79.8%)

10 (2.7%)

Collatz Conjecture

187

338 (avg. 1.8)

154 (82.4%)

2 (1.1%)

Diamond

184

307 (avg. 1.7)

134 (72.8%)

1 (0.5%)

Flatten Array

224

481 (avg. 2.1)

174 (77.7%)

6 (2.7%)

ISBN Verifier

181

408 (avg. 2.3)

139 (76.8%)

5 (2.8%)

Kindergarten Garden

259

355 (avg. 1.4)

210 (81.1%)

4 (1.5%)

Perfect Numbers

267

448 (avg. 1.7)

233 (87.3%)

7 (2.6%)

Phone Number

331

663 (avg. 2.0)

284 (85.8%)

10 (3.0%)

Protein Translation

168

415 (avg. 2.5)

123 (73.2%)

1 (0.6%)

Proverb

135

254 (avg. 1.9)

103 (76.3%)

1 (0.7%)

Queen Attack

246

424 (avg. 1.7)

210 (85.4%)

4 (1.6%)

Robot Name

385

619 (avg. 1.6)

320 (83.1%)

5 (1.3%)

Robot Simulator

234

366 (avg. 1.6)

181 (77.4%)

8 (3.4%)

Scale Generator

127

204 (avg. 1.6)

69 (54.3%)

0 (0.0%)

Scrabble Score

334

657 (avg. 2.0)

286 (85.6%)

4 (1.2%)

Secret Handshake

190

244 (avg. 1.3)

152 (80.0%)

0 (0.0%)

Sieve

236

360 (avg. 1.5)

200 (84.7%)

1 (0.4%)

Strain

245

334 (avg. 1.4)

207 (84.5%)

2 (0.8%)

Sublist

192

345 (avg. 1.8)

141 (73.4%)

1 (0.5%)

Triangle

365

626 (avg. 1.7)

314 (86.0%)

6 (1.6%)

Acronym

216

603 (avg. 2.8)

138 (63.9%)

5 (2.3%)

All Your Base

146

238 (avg. 1.6)

101 (69.2%)

0 (0.0%)

Allergies

280

418 (avg. 1.5)

210 (75.0%)

4 (1.4%)

Anagram

313

579 (avg. 1.8)

266 (85.0%)

9 (2.9%)

Beer Song

179

241 (avg. 1.3)

130 (72.6%)

1 (0.6%)

House

115

126 (avg. 1.1)

79 (68.7%)

1 (0.9%)

Largest Series Product

127

392 (avg. 3.1)

90 (70.9%)

3 (2.4%)

Matrix

161

296 (avg. 1.8)

117 (72.7%)

0 (0.0%)

Meetup

155

226 (avg. 1.5)

102 (65.8%)

1 (0.6%)

Pangram

128

260 (avg. 2.0)

98 (76.6%)

2 (1.6%)

Pascal's Triangle

124

159 (avg. 1.3)

80 (64.5%)

1 (0.8%)

Prime Factors

128

164 (avg. 1.3)

92 (71.9%)

1 (0.8%)

Pythagorean Triplet

129

233 (avg. 1.8)

83 (64.3%)

1 (0.8%)

Rotational Cipher

89

186 (avg. 2.1)

55 (61.8%)

1 (1.1%)

Saddle Points

104

246 (avg. 2.4)

76 (73.1%)

2 (1.9%)

Say

67

140 (avg. 2.1)

34 (50.7%)

1 (1.5%)

Series

167

331 (avg. 2.0)

118 (70.7%)

0 (0.0%)

Simple Linked List

156

235 (avg. 1.5)

108 (69.2%)

0 (0.0%)

Twelve Days

196

246 (avg. 1.3)

145 (74.0%)

1 (0.5%)

Word Count

484

651 (avg. 1.3)

390 (80.6%)

11 (2.3%)

Atbash Cipher

87

214 (avg. 2.5)

65 (74.7%)

1 (1.1%)

Binary Search Tree

122

529 (avg. 4.3)

78 (63.9%)

1 (0.8%)

Crypto Square

86

306 (avg. 3.6)

59 (68.6%)

0 (0.0%)

Custom Set

91

192 (avg. 2.1)

57 (62.6%)

1 (1.1%)

Food Chain

66

90 (avg. 1.4)

40 (60.6%)

0 (0.0%)

Linked List

108

224 (avg. 2.1)

73 (67.6%)

5 (4.6%)

Luhn

95

185 (avg. 1.9)

67 (70.5%)

3 (3.2%)

OCR Numbers

71

124 (avg. 1.7)

43 (60.6%)

2 (2.8%)

Roman Numerals

117

189 (avg. 1.6)

83 (70.9%)

2 (1.7%)

Run-Length Encoding

84

141 (avg. 1.7)

55 (65.5%)

0 (0.0%)

Simple Cipher

76

136 (avg. 1.8)

47 (61.8%)

0 (0.0%)

Bowling

77

158 (avg. 2.1)

38 (49.4%)

0 (0.0%)

Complex Numbers

57

81 (avg. 1.4)

33 (57.9%)

0 (0.0%)

Nth Prime

99

224 (avg. 2.3)

67 (67.7%)

1 (1.0%)

Palindrome Products

66

140 (avg. 2.1)

45 (68.2%)

0 (0.0%)

Pig Latin

73

151 (avg. 2.1)

46 (63.0%)

0 (0.0%)

Tournament

71

151 (avg. 2.1)

51 (71.8%)

1 (1.4%)

Transpose

66

114 (avg. 1.7)

39 (59.1%)

0 (0.0%)

Matching Brackets

88

175 (avg. 2.0)

63 (71.6%)

1 (1.1%)

Dominoes

71

121 (avg. 1.7)

39 (54.9%)

0 (0.0%)

Minesweeper

83

154 (avg. 1.9)

46 (55.4%)

1 (1.2%)

Wordy

91

235 (avg. 2.6)

58 (63.7%)

1 (1.1%)

Poker

186

215 (avg. 1.2)

44 (23.7%)

0 (0.0%)

4 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Binary

23

35 (avg. 1.5)

23 (100.0%)

0 (0.0%)

Hexadecimal

6

6 (avg. 1.0)

6 (100.0%)

0 (0.0%)

Octal

14

18 (avg. 1.3)

14 (100.0%)

0 (0.0%)

Trinary

17

23 (avg. 1.4)

17 (100.0%)

0 (0.0%)

47 unimplemented practice exercises

Affine Cipher

Alphametics

Armstrong Numbers

Bank Account

Book Store

Bottle Song

Change

Connect

D&D Character

DOT DSL

Darts

Error Handling

Forth

Go Counting

Grep

Hangman

High Scores

Killer Sudoku Helper

Knapsack

Ledger

Lens Person

Markdown

Micro Blog

POV

PaaS I/O

Parallel Letter Frequency

REST API

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

Reverse String

SGF Parsing

Satellite

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Tree Building

Two Bucket

Variable Length Quantity

Word Search

Yacht

Zebra Puzzle

Zipper

18,279
students have developed their Swift skills on Exercism.

The Swift track needs attention ⚠️

Build

Create the Swift syllabus

Usage statistics

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

Language Tracks

#12in23 Challenge

Your Journey

Community Videos

Brief Introduction Series

Interviews & Stories

Discord

Forum

Getting started

Mentoring

Docs

Contributors

About Exercism

Our Impact

Donate

Insiders

SWAG

18,279 students have developed their Swift skills on Exercism.

The Swift track needs attention ⚠️

Build

Create the Swift syllabus

Usage statistics

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

18,279
students have developed their Swift skills on Exercism.