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TypeScript Track Management

This page provides the Exercism community with the information and tools needed to manage the TypeScript track.

Students

98,271

Submissions

1,603,657

Mentoring Discussions

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The TypeScript track is healthy ✅

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Practice Exercises

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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.

Synced primary repo: 1ce80b07d40d2d707dd6d651c640774c5c884410 (Updates should be instant)

Next goal: Implement 140 practice exercises. Find out more.

108 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

74,916

107,115 (avg. 1.4)

57,330 (76.5%)

6 (0.0%)

Two Fer

44,637

150,659 (avg. 3.4)

33,659 (75.4%)

2,105 (4.7%)

Resistor Color

22,418

110,007 (avg. 4.9)

16,346 (72.9%)

587 (2.6%)

Resistor Color Duo

25,866

185,458 (avg. 7.2)

18,096 (70.0%)

1,468 (5.7%)

Resistor Color Trio

14,737

148,658 (avg. 10.1)

9,781 (66.4%)

545 (3.7%)

Leap

16,381

56,594 (avg. 3.5)

13,645 (83.3%)

1,472 (9.0%)

Line Up

1,492

7,120 (avg. 4.8)

1,247 (83.6%)

20 (1.3%)

RNA Transcription

11,808

76,747 (avg. 6.5)

9,618 (81.5%)

740 (6.3%)

Space Age

9,727

64,181 (avg. 6.6)

7,731 (79.5%)

401 (4.1%)

D&D Character

7,284

52,899 (avg. 7.3)

4,779 (65.6%)

186 (2.6%)

Darts

4,079

13,910 (avg. 3.4)

3,178 (77.9%)

60 (1.5%)

Pangram

7,390

33,256 (avg. 4.5)

6,048 (81.8%)

291 (3.9%)

Bob

6,841

58,481 (avg. 8.5)

4,872 (71.2%)

295 (4.3%)

Matrix

6,441

43,502 (avg. 6.8)

4,099 (63.6%)

233 (3.6%)

Robot Name

5,791

41,424 (avg. 7.2)

3,334 (57.6%)

218 (3.8%)

Grade School

3,911

44,707 (avg. 11.4)

2,484 (63.5%)

146 (3.7%)

Clock

3,019

25,855 (avg. 8.6)

2,027 (67.1%)

93 (3.1%)

Split-Second Stopwatch

220

1,578 (avg. 7.2)

143 (65.0%)

2 (0.9%)

Secret Handshake

2,313

11,345 (avg. 4.9)

1,791 (77.4%)

66 (2.9%)

Binary Search

2,612

14,566 (avg. 5.6)

1,940 (74.3%)

50 (1.9%)

Linked List

2,433

18,904 (avg. 7.8)

1,528 (62.8%)

85 (3.5%)

Prism

171

866 (avg. 5.1)

72 (42.1%)

0 (0.0%)

Rational Numbers

1,308

11,525 (avg. 8.8)

887 (67.8%)

29 (2.2%)

Atbash Cipher

1,389

10,187 (avg. 7.3)

1,113 (80.1%)

37 (2.7%)

Simple Cipher

1,802

7,784 (avg. 4.3)

1,046 (58.0%)

159 (8.8%)

Wordy

1,356

14,975 (avg. 11.0)

785 (57.9%)

30 (2.2%)

List Ops

1,577

12,778 (avg. 8.1)

634 (40.2%)

40 (2.5%)

Word Count

3,605

21,013 (avg. 5.8)

2,362 (65.5%)

99 (2.7%)

Difference of Squares

2,713

8,100 (avg. 3.0)

2,159 (79.6%)

81 (3.0%)

Gigasecond

2,851

7,000 (avg. 2.5)

2,074 (72.7%)

84 (2.9%)

Square Root

342

791 (avg. 2.3)

278 (81.3%)

1 (0.3%)

Reverse String

3,228

6,843 (avg. 2.1)

2,781 (86.2%)

50 (1.5%)

Triangle

2,024

11,564 (avg. 5.7)

1,537 (75.9%)

45 (2.2%)

Collatz Conjecture

1,343

4,410 (avg. 3.3)

1,082 (80.6%)

19 (1.4%)

ETL

1,481

6,376 (avg. 4.3)

1,154 (77.9%)

18 (1.2%)

Protein Translation

1,498

9,985 (avg. 6.7)

1,159 (77.4%)

32 (2.1%)

Raindrops

1,684

5,364 (avg. 3.2)

1,453 (86.3%)

18 (1.1%)

Hamming

1,456

3,737 (avg. 2.6)

1,245 (85.5%)

14 (1.0%)

Nucleotide Count

1,143

4,434 (avg. 3.9)

881 (77.1%)

14 (1.2%)

Camicia

506 (avg. 6.2)

43 (53.1%)

1 (1.2%)

Change

278 (avg. 6.0)

26 (56.5%)

0 (0.0%)

Scrabble Score

1,258

5,454 (avg. 4.3)

990 (78.7%)

23 (1.8%)

Allergies

1,039

5,432 (avg. 5.2)

697 (67.1%)

17 (1.6%)

Perfect Numbers

1,137

4,462 (avg. 3.9)

929 (81.7%)

16 (1.4%)

Complex Numbers

709

3,156 (avg. 4.5)

464 (65.4%)

3 (0.4%)

Luhn

1,024

5,642 (avg. 5.5)

776 (75.8%)

18 (1.8%)

Grains

801

3,542 (avg. 4.4)

610 (76.2%)

8 (1.0%)

Pythagorean Triplet

741

2,717 (avg. 3.7)

411 (55.5%)

5 (0.7%)

Relative Distance

142

828 (avg. 5.8)

80 (56.3%)

3 (2.1%)

Sum of Multiples

790

3,602 (avg. 4.6)

580 (73.4%)

8 (1.0%)

Acronym

1,333

9,680 (avg. 7.3)

984 (73.8%)

13 (1.0%)

Anagram

1,258

6,839 (avg. 5.4)

973 (77.3%)

13 (1.0%)

Isogram

1,286

5,185 (avg. 4.0)

1,046 (81.3%)

8 (0.6%)

Roman Numerals

1,065

4,138 (avg. 3.9)

781 (73.3%)

9 (0.8%)

Series

1,004

5,549 (avg. 5.5)

757 (75.4%)

11 (1.1%)

State of Tic-Tac-Toe

104

390 (avg. 3.8)

58 (55.8%)

0 (0.0%)

Phone Number

902

6,351 (avg. 7.0)

618 (68.5%)

3 (0.3%)

Two Bucket

551

2,323 (avg. 4.2)

248 (45.0%)

3 (0.5%)

Variable Length Quantity

425

1,715 (avg. 4.0)

226 (53.2%)

1 (0.2%)

Largest Series Product

534

2,238 (avg. 4.2)

378 (70.8%)

13 (2.4%)

Food Chain

457

2,045 (avg. 4.5)

282 (61.7%)

0 (0.0%)

House

444

1,825 (avg. 4.1)

257 (57.9%)

3 (0.7%)

ISBN Verifier

590

2,367 (avg. 4.0)

419 (71.0%)

8 (1.4%)

Pig Latin

467

2,167 (avg. 4.6)

286 (61.2%)

7 (1.5%)

Proverb

402

1,001 (avg. 2.5)

293 (72.9%)

1 (0.2%)

Twelve Days

461

1,879 (avg. 4.1)

299 (64.9%)

3 (0.7%)

Say

416

2,161 (avg. 5.2)

245 (58.9%)

0 (0.0%)

Rectangles

331

1,008 (avg. 3.0)

164 (49.5%)

0 (0.0%)

Saddle Points

390

1,265 (avg. 3.2)

241 (61.8%)

5 (1.3%)

Spiral Matrix

376

1,239 (avg. 3.3)

228 (60.6%)

4 (1.1%)

Transpose

438

2,968 (avg. 6.8)

250 (57.1%)

1 (0.2%)

OCR Numbers

314

1,606 (avg. 5.1)

180 (57.3%)

3 (1.0%)

Nth Prime

493

1,604 (avg. 3.3)

353 (71.6%)

5 (1.0%)

Alphametics

314

1,461 (avg. 4.7)

124 (39.5%)

1 (0.3%)

Connect

256

825 (avg. 3.2)

124 (48.4%)

2 (0.8%)

Bowling

649

5,978 (avg. 9.2)

232 (35.7%)

9 (1.4%)

Prime Factors

469

1,103 (avg. 2.4)

349 (74.4%)

12 (2.6%)

Diamond

340

1,467 (avg. 4.3)

201 (59.1%)

1 (0.3%)

Pascal's Triangle

373

1,157 (avg. 3.1)

239 (64.1%)

5 (1.3%)

Binary Search Tree

498

2,212 (avg. 4.4)

303 (60.8%)

4 (0.8%)

Sublist

385

2,027 (avg. 5.3)

228 (59.2%)

3 (0.8%)

Custom Set

411

2,235 (avg. 5.4)

232 (56.4%)

1 (0.2%)

Circular Buffer

633

2,563 (avg. 4.0)

381 (60.2%)

8 (1.3%)

Word Search

569

2,520 (avg. 4.4)

212 (37.3%)

8 (1.4%)

Sieve

330

796 (avg. 2.4)

225 (68.2%)

2 (0.6%)

Palindrome Products

356

2,548 (avg. 7.2)

161 (45.2%)

4 (1.1%)

Diffie-Hellman

820

2,727 (avg. 3.3)

552 (67.3%)

6 (0.7%)

Robot Simulator

703

4,177 (avg. 5.9)

452 (64.3%)

9 (1.3%)

Armstrong Numbers

1,527

6,618 (avg. 4.3)

1,145 (75.0%)

30 (2.0%)

Run-Length Encoding

1,263

5,911 (avg. 4.7)

837 (66.3%)

23 (1.8%)

Bank Account

490

2,517 (avg. 5.1)

335 (68.4%)

4 (0.8%)

Eliud's Eggs

351

819 (avg. 2.3)

273 (77.8%)

4 (1.1%)

Bottle Song

525 (avg. 5.4)

71 (73.2%)

0 (0.0%)

Rotational Cipher

525

1,004 (avg. 1.9)

344 (65.5%)

9 (1.7%)

Strain

698

1,501 (avg. 2.2)

474 (67.9%)

16 (2.3%)

All Your Base

526

1,912 (avg. 3.6)

302 (57.4%)

5 (1.0%)

Flatten Array

850

3,623 (avg. 4.3)

551 (64.8%)

15 (1.8%)

Matching Brackets

728

3,047 (avg. 4.2)

452 (62.1%)

16 (2.2%)

Tournament

334

2,698 (avg. 8.1)

186 (55.7%)

2 (0.6%)

Flower Field

101 (avg. 1.5)

44 (64.7%)

0 (0.0%)

Kindergarten Garden

363

1,429 (avg. 3.9)

219 (60.3%)

1 (0.3%)

Queen Attack

808

3,680 (avg. 4.6)

456 (56.4%)

23 (2.8%)

React

1,094

2,385 (avg. 2.2)

114 (10.4%)

3 (0.3%)

Crypto Square

521

1,927 (avg. 3.7)

280 (53.7%)

9 (1.7%)

Knapsack

619

3,109 (avg. 5.0)

236 (38.1%)

5 (0.8%)

Conway's Game of Life

249

710 (avg. 2.9)

121 (48.6%)

1 (0.4%)

Poker

47 (avg. 1.6)

10 (33.3%)

0 (0.0%)

Yacht

208 (avg. 3.3)

32 (50.8%)

1 (1.6%)

3 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Accumulate

386

884 (avg. 2.3)

266 (68.9%)

11 (2.8%)

Beer Song

522

5,144 (avg. 9.9)

310 (59.4%)

1 (0.2%)

Minesweeper

512

2,183 (avg. 4.3)

277 (54.1%)

8 (1.6%)

32 unimplemented practice exercises

Affine Cipher

Baffling Birthdays

Book Store

Dominoes

DOT DSL

Error Handling

Forth

Go Counting

Grep

High Scores

Intergalactic Transmission

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Meetup

Micro Blog

PaaS I/O

Parallel Letter Frequency

Piecing It Together

POV

Rail Fence Cipher

Resistor Color Tolerance

REST API

Satellite

Save the Cow

SGF Parsing

Simple Linked List

Swift Scheduling

Tree Building

Zebra Puzzle

Zipper

Test Runner

Learn More

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

Current version: 905d8ac6a5eb5d64c2ed8cd2b91514c26a9e8054 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,567,347

Test Run Pass Rate

20.2% (316401)

Test Run Fail Rate

40.2% (629495)

Test Run Error Rate

39.6% (621451)

Representer

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.

Current version: 9b0585f35f61f5158a78653e8ef21dbb67057537 (Takes up to 10 mins to deploy)

Total Representer Runs

297,934

Total Representation Comments Made

55,913

Feedback Given Frequency

18.8%

Analyzer

Learn More

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

Current version: 735608d343f47d73d1101c024c3ee46093052510 (Takes up to 10 mins to deploy)

Total Analyzer Runs

295,350

Total Analysis Comments Made

11,363

Feedback Given Frequency

0.6%

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