CoffeeScript

1,216 students

About

Exercises

Build Status

46 contributors

57 mentors

1,216
students have developed their CoffeeScript skills on Exercism.

Students

1,216

Submissions

4,373

Mentoring Discussions

150

The CoffeeScript track needs attention ⚠️

Building

Build

Use your knowledge to build the CoffeeScript track itself

46 contributors

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.

Next goal: Get Test Runners to Version 2. CoffeeScript is currently utilising a Version 1 Test Runner. Find out more.

Usage statistics

Total Test Runner Runs

2,742

Test Run Pass Rate

33.1% (908)

Test Run Fail Rate

55.7% (1528)

Test Run Error Rate

11.2% (306)

Build Analyzers

Learn More

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.

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 at least 30 practice exercises. Find out more.

Usage statistics

21 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

596

885 (avg. 1.5)

398 (66.8%)

2 (0.3%)

Queen Attack

137

355 (avg. 2.6)

42 (30.7%)

3 (2.2%)

Anagram

133

376 (avg. 2.8)

117 (88.0%)

3 (2.3%)

Beer Song

81 (avg. 1.9)

31 (72.1%)

2 (4.7%)

Binary

137

256 (avg. 1.9)

130 (94.9%)

10 (7.3%)

Luhn

250 (avg. 3.6)

63 (91.3%)

0 (0.0%)

Nucleotide Count

125 (avg. 3.9)

27 (84.4%)

3 (9.4%)

Palindrome Products

86 (avg. 2.1)

32 (78.0%)

3 (7.3%)

Pascals Triangle

59 (avg. 2.0)

20 (69.0%)

0 (0.0%)

Triangle

168 (avg. 2.2)

72 (94.7%)

4 (5.3%)

Accumulate

146

215 (avg. 1.5)

138 (94.5%)

9 (6.2%)

Clock

46 (avg. 1.4)

24 (75.0%)

0 (0.0%)

Hexadecimal

130 (avg. 1.5)

85 (95.5%)

6 (6.7%)

Linked List

51 (avg. 2.0)

23 (88.5%)

0 (0.0%)

Trinary

117 (avg. 1.2)

93 (97.9%)

1 (1.1%)

Word Count

204

293 (avg. 1.4)

190 (93.1%)

15 (7.4%)

Nth Prime

57 (avg. 1.2)

40 (87.0%)

4 (8.7%)

Wordy

41 (avg. 1.3)

28 (87.5%)

0 (0.0%)

Atbash Cipher

35 (avg. 1.4)

22 (88.0%)

1 (4.0%)

Binary Search Tree

80 (avg. 1.6)

48 (94.1%)

4 (7.8%)

Bob

372

667 (avg. 1.8)

340 (91.4%)

82 (22.0%)

112 unimplemented practice exercises

Acronym

Affine Cipher

All Your Base

Allergies

Alphametics

Armstrong Numbers

Bank Account

Binary Search

Book Store

Bottle Song

Bowling

Change

Circular Buffer

Collatz Conjecture

Complex Numbers

Connect

Crypto Square

Custom Set

D&D Character

DOT DSL

Darts

Diamond

Difference of Squares

Dominoes

ETL

Error Handling

Flatten Array

Food Chain

Forth

Gigasecond

Go Counting

Grade School

Grains

Grep

Hamming

Hangman

High Scores

House

ISBN Verifier

Isogram

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Largest Series Product

Leap

Ledger

Lens Person

List Ops

Markdown

Matching Brackets

Matrix

Meetup

Micro Blog

Minesweeper

OCR Numbers

POV

PaaS I/O

Pangram

Parallel Letter Frequency

Perfect Numbers

Phone Number

Pig Latin

Poker

Prime Factors

Protein Translation

Proverb

Pythagorean Triplet

REST API

RNA Transcription

Rail Fence Cipher

Raindrops

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

Reverse String

Robot Name

Robot Simulator

Roman Numerals

Rotational Cipher

Run-Length Encoding

SGF Parsing

Saddle Points

Satellite

Say

Scale Generator

Scrabble Score

Secret Handshake

Series

Sieve

Simple Cipher

Simple Linked List

Space Age

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Sum of Multiples

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Two-Fer

Variable Length Quantity

Word Search

Yacht

Zebra Puzzle

Zipper

Volunteers

101

kytrinyx

872

ErikSchierboom

482

aimorris

320

+ 89 more

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

Become an Exercism Volunteer

Language Tracks

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Your Journey

Community Videos

Brief Introduction Series

Interviews & Stories

Discord

Forum

Getting started

Mentoring

Docs

Contributors

About Exercism

Our Impact

Donate

Insiders

SWAG

1,216 students have developed their CoffeeScript skills on Exercism.

The CoffeeScript track needs attention ⚠️

Build

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

1,216
students have developed their CoffeeScript skills on Exercism.