TypeScript impact and status on Exercism

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1776 mentors

TypeScript Track Management

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

Students

97,462

Submissions

1,590,246

Mentoring Discussions

9,920

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: a24e6ae756c61932165bb7d0a2703417a8291af3 (Updates should be instant)

Next goal: Implement 139 practice exercises. Find out more.

108 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

74,101

105,942 (avg. 1.4)

56,775 (76.6%)

6 (0.0%)

Two Fer

44,211

149,264 (avg. 3.4)

33,347 (75.4%)

2,099 (4.7%)

Resistor Color

22,104

108,583 (avg. 4.9)

16,125 (73.0%)

583 (2.6%)

Resistor Color Duo

25,654

184,600 (avg. 7.2)

17,930 (69.9%)

1,466 (5.7%)

Resistor Color Trio

14,575

147,085 (avg. 10.1)

9,658 (66.3%)

541 (3.7%)

Leap

16,238

56,175 (avg. 3.5)

13,524 (83.3%)

1,471 (9.1%)

Line Up

1,367

6,608 (avg. 4.8)

1,146 (83.8%)

20 (1.5%)

RNA Transcription

11,706

76,153 (avg. 6.5)

9,528 (81.4%)

737 (6.3%)

Space Age

9,627

63,555 (avg. 6.6)

7,645 (79.4%)

399 (4.1%)

D&D Character

7,200

52,624 (avg. 7.3)

4,726 (65.6%)

183 (2.5%)

Darts

4,017

13,749 (avg. 3.4)

3,126 (77.8%)

60 (1.5%)

Pangram

7,338

33,047 (avg. 4.5)

6,004 (81.8%)

291 (4.0%)

Bob

6,791

58,167 (avg. 8.6)

4,834 (71.2%)

294 (4.3%)

Matrix

6,383

43,231 (avg. 6.8)

4,066 (63.7%)

232 (3.6%)

Robot Name

5,741

41,155 (avg. 7.2)

3,300 (57.5%)

216 (3.8%)

Grade School

3,875

44,341 (avg. 11.4)

2,456 (63.4%)

146 (3.8%)

Clock

2,990

25,538 (avg. 8.5)

2,004 (67.0%)

92 (3.1%)

Split-Second Stopwatch

201

1,446 (avg. 7.2)

133 (66.2%)

2 (1.0%)

Secret Handshake

2,302

11,240 (avg. 4.9)

1,780 (77.3%)

66 (2.9%)

Binary Search

2,597

14,463 (avg. 5.6)

1,929 (74.3%)

50 (1.9%)

Linked List

2,422

18,801 (avg. 7.8)

1,518 (62.7%)

85 (3.5%)

Prism

163

827 (avg. 5.1)

70 (42.9%)

0 (0.0%)

Rational Numbers

1,303

11,409 (avg. 8.8)

881 (67.6%)

29 (2.2%)

Atbash Cipher

1,382

10,100 (avg. 7.3)

1,107 (80.1%)

37 (2.7%)

Simple Cipher

1,796

7,690 (avg. 4.3)

1,040 (57.9%)

159 (8.9%)

Wordy

1,348

14,814 (avg. 11.0)

778 (57.7%)

30 (2.2%)

List Ops

1,562

12,570 (avg. 8.0)

624 (39.9%)

40 (2.6%)

Word Count

3,584

20,923 (avg. 5.8)

2,347 (65.5%)

98 (2.7%)

Difference of Squares

2,693

8,023 (avg. 3.0)

2,143 (79.6%)

81 (3.0%)

Gigasecond

2,838

6,964 (avg. 2.5)

2,065 (72.8%)

84 (3.0%)

Square Root

330

769 (avg. 2.3)

267 (80.9%)

0 (0.0%)

Reverse String

3,211

6,805 (avg. 2.1)

2,766 (86.1%)

50 (1.6%)

Triangle

2,011

11,496 (avg. 5.7)

1,527 (75.9%)

45 (2.2%)

Collatz Conjecture

1,331

4,361 (avg. 3.3)

1,072 (80.5%)

19 (1.4%)

ETL

1,470

6,359 (avg. 4.3)

1,144 (77.8%)

18 (1.2%)

Protein Translation

1,486

9,914 (avg. 6.7)

1,152 (77.5%)

32 (2.2%)

Raindrops

1,668

5,309 (avg. 3.2)

1,437 (86.2%)

18 (1.1%)

Hamming

1,447

3,714 (avg. 2.6)

1,237 (85.5%)

14 (1.0%)

Nucleotide Count

1,135

4,407 (avg. 3.9)

875 (77.1%)

14 (1.2%)

Camicia

460 (avg. 6.1)

38 (50.7%)

1 (1.3%)

Change

243 (avg. 6.2)

22 (56.4%)

0 (0.0%)

Scrabble Score

1,250

5,420 (avg. 4.3)

984 (78.7%)

23 (1.8%)

Allergies

1,031

5,396 (avg. 5.2)

693 (67.2%)

17 (1.6%)

Perfect Numbers

1,131

4,443 (avg. 3.9)

923 (81.6%)

16 (1.4%)

Complex Numbers

704

3,099 (avg. 4.4)

460 (65.3%)

3 (0.4%)

Luhn

1,021

5,639 (avg. 5.5)

773 (75.7%)

18 (1.8%)

Grains

794

3,528 (avg. 4.4)

606 (76.3%)

8 (1.0%)

Pythagorean Triplet

735

2,679 (avg. 3.6)

407 (55.4%)

5 (0.7%)

Relative Distance

139

823 (avg. 5.9)

77 (55.4%)

3 (2.2%)

Sum of Multiples

785

3,570 (avg. 4.5)

575 (73.2%)

8 (1.0%)

Acronym

1,325

9,652 (avg. 7.3)

977 (73.7%)

13 (1.0%)

Anagram

1,248

6,815 (avg. 5.5)

964 (77.2%)

13 (1.0%)

Isogram

1,274

5,126 (avg. 4.0)

1,034 (81.2%)

8 (0.6%)

Roman Numerals

1,060

4,126 (avg. 3.9)

776 (73.2%)

9 (0.8%)

Series

995

5,531 (avg. 5.6)

750 (75.4%)

11 (1.1%)

State of Tic-Tac-Toe

371 (avg. 3.9)

53 (55.8%)

0 (0.0%)

Phone Number

898

6,324 (avg. 7.0)

615 (68.5%)

3 (0.3%)

Two Bucket

549

2,319 (avg. 4.2)

246 (44.8%)

3 (0.5%)

Variable Length Quantity

422

1,708 (avg. 4.0)

224 (53.1%)

1 (0.2%)

Largest Series Product

530

2,235 (avg. 4.2)

376 (70.9%)

13 (2.5%)

Food Chain

453

1,985 (avg. 4.4)

279 (61.6%)

0 (0.0%)

House

441

1,804 (avg. 4.1)

254 (57.6%)

3 (0.7%)

ISBN Verifier

586

2,359 (avg. 4.0)

416 (71.0%)

8 (1.4%)

Pig Latin

466

2,166 (avg. 4.6)

285 (61.2%)

7 (1.5%)

Proverb

400

978 (avg. 2.4)

292 (73.0%)

1 (0.3%)

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

389

1,265 (avg. 3.3)

241 (62.0%)

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

490

1,595 (avg. 3.3)

350 (71.4%)

5 (1.0%)

Alphametics

313

1,456 (avg. 4.7)

123 (39.3%)

1 (0.3%)

Connect

256

825 (avg. 3.2)

124 (48.4%)

2 (0.8%)

Bowling

647

5,978 (avg. 9.2)

232 (35.9%)

9 (1.4%)

Prime Factors

467

1,088 (avg. 2.3)

347 (74.3%)

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

496

2,211 (avg. 4.5)

303 (61.1%)

4 (0.8%)

Sublist

382

2,021 (avg. 5.3)

227 (59.4%)

3 (0.8%)

Custom Set

409

2,235 (avg. 5.5)

232 (56.7%)

1 (0.2%)

Circular Buffer

632

2,563 (avg. 4.1)

381 (60.3%)

8 (1.3%)

Word Search

564

2,515 (avg. 4.5)

210 (37.2%)

8 (1.4%)

Sieve

330

796 (avg. 2.4)

225 (68.2%)

2 (0.6%)

Palindrome Products

355

2,548 (avg. 7.2)

161 (45.4%)

4 (1.1%)

Diffie-Hellman

818

2,708 (avg. 3.3)

550 (67.2%)

6 (0.7%)

Robot Simulator

700

4,166 (avg. 6.0)

451 (64.4%)

9 (1.3%)

Armstrong Numbers

1,524

6,588 (avg. 4.3)

1,142 (74.9%)

30 (2.0%)

Run-Length Encoding

1,258

5,865 (avg. 4.7)

832 (66.1%)

23 (1.8%)

Bank Account

482

2,491 (avg. 5.2)

329 (68.3%)

4 (0.8%)

Eliud's Eggs

347

815 (avg. 2.3)

271 (78.1%)

4 (1.2%)

Bottle Song

521 (avg. 5.7)

67 (73.6%)

0 (0.0%)

Rotational Cipher

523

980 (avg. 1.9)

342 (65.4%)

9 (1.7%)

Strain

695

1,499 (avg. 2.2)

472 (67.9%)

16 (2.3%)

All Your Base

524

1,910 (avg. 3.6)

301 (57.4%)

5 (1.0%)

Flatten Array

848

3,610 (avg. 4.3)

549 (64.7%)

15 (1.8%)

Matching Brackets

726

3,036 (avg. 4.2)

450 (62.0%)

16 (2.2%)

Tournament

332

2,697 (avg. 8.1)

185 (55.7%)

2 (0.6%)

Flower Field

94 (avg. 1.4)

41 (63.1%)

0 (0.0%)

Kindergarten Garden

362

1,428 (avg. 3.9)

218 (60.2%)

1 (0.3%)

Queen Attack

802

3,675 (avg. 4.6)

454 (56.6%)

23 (2.9%)

React

1,089

2,376 (avg. 2.2)

113 (10.4%)

3 (0.3%)

Crypto Square

517

1,923 (avg. 3.7)

278 (53.8%)

9 (1.7%)

Knapsack

616

3,098 (avg. 5.0)

234 (38.0%)

5 (0.8%)

Conway's Game of Life

238

690 (avg. 2.9)

117 (49.2%)

1 (0.4%)

Poker

38 (avg. 1.6)

8 (33.3%)

0 (0.0%)

Yacht

207 (avg. 3.5)

31 (52.5%)

1 (1.7%)

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%)

31 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

REST API

Satellite

Save the Cow

SGF Parsing

Simple Linked List

Swift Scheduling

Tree Building

Zebra Puzzle

Zipper

Test Runner

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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

1,554,148

Test Run Pass Rate

20.2% (313231)

Test Run Fail Rate

40.2% (624749)

Test Run Error Rate

39.6% (616168)

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

295,033

Total Representation Comments Made

55,913

Feedback Given Frequency

19.0%

Analyzer

Learn More

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

Current version: 3902d8dc82083bfea37bb255d98c2e2cd1b436c9 (Takes up to 10 mins to deploy)

Total Analyzer Runs

292,512

Total Analysis Comments Made

11,363

Feedback Given Frequency

0.6%

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