CoffeeScript Track Management

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

Students
1,406
Submissions
7,453
Mentoring Discussions
157

The CoffeeScript track needs attention ⚠️

Building

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: 1f73b2c6da0c03d15a4494eb861cbfb02b3ff216 (Updates should be instant)

Next goal: Implement 132 practice exercises. Find out more.
53 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
775
1,180 (avg. 1.5)
499 (64.4%)
2 (0.3%)
Acronym Acronym
15
24 (avg. 1.6)
4 (26.7%)
0 (0.0%)
Anagram Anagram
148
467 (avg. 3.2)
128 (86.5%)
4 (2.7%)
Binary Binary
145
348 (avg. 2.4)
136 (93.8%)
10 (6.9%)
Binary Search Binary Search
4
29 (avg. 7.3)
3 (75.0%)
0 (0.0%)
Bottle Song Bottle Song
11
104 (avg. 9.5)
7 (63.6%)
1 (9.1%)
Clock Clock
39
140 (avg. 3.6)
29 (74.4%)
0 (0.0%)
Collatz Conjecture Collatz Conjecture
3
14 (avg. 4.7)
3 (100.0%)
0 (0.0%)
D&D Character D&D Character
3
9 (avg. 3.0)
3 (100.0%)
0 (0.0%)
Darts Darts
6
9 (avg. 1.5)
5 (83.3%)
0 (0.0%)
Difference of Squares Difference of Squares
4
10 (avg. 2.5)
4 (100.0%)
0 (0.0%)
Eliud's Eggs Eliud's Eggs
3
6 (avg. 2.0)
3 (100.0%)
0 (0.0%)
Gigasecond Gigasecond
3
5 (avg. 1.7)
3 (100.0%)
0 (0.0%)
Grains Grains
4
21 (avg. 5.3)
4 (100.0%)
0 (0.0%)
Hexadecimal Hexadecimal
94
176 (avg. 1.9)
90 (95.7%)
6 (6.4%)
High Scores High Scores
3
8 (avg. 2.7)
3 (100.0%)
0 (0.0%)
Isogram Isogram
3
16 (avg. 5.3)
3 (100.0%)
0 (0.0%)
Leap Leap
16
37 (avg. 2.3)
15 (93.8%)
0 (0.0%)
Linked List Linked List
35
208 (avg. 5.9)
28 (80.0%)
0 (0.0%)
List Ops List Ops
3
23 (avg. 7.7)
3 (100.0%)
0 (0.0%)
Luhn Luhn
75
408 (avg. 5.4)
68 (90.7%)
0 (0.0%)
Nucleotide Count Nucleotide Count
39
216 (avg. 5.5)
33 (84.6%)
3 (7.7%)
Palindrome Products Palindrome Products
48
210 (avg. 4.4)
38 (79.2%)
3 (6.3%)
Pangram Pangram
4
53 (avg. 13.3)
3 (75.0%)
0 (0.0%)
Pascals Triangle Pascals Triangle
38
101 (avg. 2.7)
28 (73.7%)
0 (0.0%)
Phone Number Phone Number
13
109 (avg. 8.4)
11 (84.6%)
0 (0.0%)
Protein Translation Protein Translation
5
47 (avg. 9.4)
3 (60.0%)
0 (0.0%)
Queen Attack Queen Attack
172
514 (avg. 3.0)
50 (29.1%)
3 (1.7%)
Raindrops Raindrops
6
54 (avg. 9.0)
4 (66.7%)
0 (0.0%)
Resistor Color Resistor Color
3
6 (avg. 2.0)
3 (100.0%)
0 (0.0%)
Resistor Color Duo Resistor Color Duo
3
5 (avg. 1.7)
3 (100.0%)
0 (0.0%)
Robot Simulator Robot Simulator
3
4 (avg. 1.3)
3 (100.0%)
0 (0.0%)
Reverse String Reverse String
7
23 (avg. 3.3)
7 (100.0%)
0 (0.0%)
Rna Transcription Rna Transcription
12
57 (avg. 4.8)
11 (91.7%)
0 (0.0%)
Roman Numerals Roman Numerals
5
28 (avg. 5.6)
4 (80.0%)
0 (0.0%)
Scrabble Score Scrabble Score
12
147 (avg. 12.3)
11 (91.7%)
1 (8.3%)
Space Age Space Age
4
18 (avg. 4.5)
3 (75.0%)
0 (0.0%)
Square Root Square Root
3
6 (avg. 2.0)
2 (66.7%)
0 (0.0%)
Strain Strain
3
6 (avg. 2.0)
3 (100.0%)
0 (0.0%)
Triangle Triangle
90
297 (avg. 3.3)
83 (92.2%)
4 (4.4%)
Trinary Trinary
100
127 (avg. 1.3)
98 (98.0%)
1 (1.0%)
Two Fer Two Fer
26
93 (avg. 3.6)
18 (69.2%)
1 (3.8%)
Word Count Word Count
209
488 (avg. 2.3)
195 (93.3%)
15 (7.2%)
Atbash Cipher Atbash Cipher
30
98 (avg. 3.3)
27 (90.0%)
1 (3.3%)
Binary Search Tree Binary Search Tree
58
117 (avg. 2.0)
55 (94.8%)
4 (6.9%)
Bob Bob
379
728 (avg. 1.9)
346 (91.3%)
83 (21.9%)
Nth Prime Nth Prime
51
130 (avg. 2.5)
45 (88.2%)
4 (7.8%)
Wordy Wordy
37
171 (avg. 4.6)
33 (89.2%)
0 (0.0%)
Allergies Allergies
3
6 (avg. 2.0)
3 (100.0%)
0 (0.0%)
Circular Buffer Circular Buffer
4
8 (avg. 2.0)
2 (50.0%)
0 (0.0%)
Sieve Sieve
3
23 (avg. 7.7)
3 (100.0%)
0 (0.0%)
Secret Handshake Secret Handshake
3
7 (avg. 2.3)
3 (100.0%)
0 (0.0%)
Hamming Hamming
3
8 (avg. 2.7)
3 (100.0%)
0 (0.0%)
2 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
Accumulate Accumulate
151
225 (avg. 1.5)
143 (94.7%)
9 (6.0%)
Beer Song Beer Song
43
81 (avg. 1.9)
31 (72.1%)
2 (4.7%)
79 unimplemented practice exercises
Affine Cipher Affine Cipher
All Your Base All Your Base
Alphametics Alphametics
Armstrong Numbers Armstrong Numbers
Bank Account Bank Account
Book Store Book Store
Bowling Bowling
Change Change
Complex Numbers Complex Numbers
Connect Connect
Conway's Game of Life Conway's Game of Life
Crypto Square Crypto Square
Custom Set Custom Set
Diamond Diamond
Dominoes Dominoes
DOT DSL DOT DSL
Error Handling Error Handling
ETL ETL
Flatten Array Flatten Array
Food Chain Food Chain
Forth Forth
Go Counting Go Counting
Grade School Grade School
Grep Grep
Hangman Hangman
House House
ISBN Verifier ISBN Verifier
Killer Sudoku Helper Killer Sudoku Helper
Kindergarten Garden Kindergarten Garden
Knapsack Knapsack
Largest Series Product Largest Series Product
Ledger Ledger
Lens Person Lens Person
Markdown Markdown
Matching Brackets Matching Brackets
Matrix Matrix
Meetup Meetup
Micro Blog Micro Blog
Minesweeper Minesweeper
OCR Numbers OCR Numbers
PaaS I/O PaaS I/O
Parallel Letter Frequency Parallel Letter Frequency
Perfect Numbers Perfect Numbers
Pig Latin Pig Latin
Poker Poker
POV POV
Prime Factors Prime Factors
Proverb Proverb
Pythagorean Triplet Pythagorean Triplet
Rail Fence Cipher Rail Fence Cipher
Rational Numbers Rational Numbers
React React
Rectangles Rectangles
Resistor Color Trio Resistor Color Trio
REST API REST API
Robot Name Robot Name
Rotational Cipher Rotational Cipher
Run-Length Encoding Run-Length Encoding
Saddle Points Saddle Points
Satellite Satellite
Say Say
Series Series
SGF Parsing SGF Parsing
Simple Cipher Simple Cipher
Simple Linked List Simple Linked List
Spiral Matrix Spiral Matrix
State of Tic-Tac-Toe State of Tic-Tac-Toe
Sublist Sublist
Sum of Multiples Sum of Multiples
Tournament Tournament
Transpose Transpose
Tree Building Tree Building
Twelve Days Twelve Days
Two Bucket Two Bucket
Variable Length Quantity Variable Length Quantity
Word Search Word Search
Yacht Yacht
Zebra Puzzle Zebra Puzzle
Zipper Zipper

Programming Tags

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Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

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: 44cbcf903fbe110caa1174de0136076a3405aae8 (Takes up to 10 mins to deploy)

Total Test Runner Runs
6,652
Test Run Pass Rate
29.3% (1946)
Test Run Fail Rate
53.5% (3561)
Test Run Error Rate
17.2% (1145)

Representer

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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.

Analyzer

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

Next goal: Build an Analyzer. Find out more.