CoffeeScript

CoffeeScript is a language that compiles into JavaScript. It uses an alternative syntax to the Java-like syntax of JavaScript, and is one of many new transpiled languages used in web development.

Master CoffeeScript with
Interactive Learning

Elevate your CoffeeScript skills through 103 curated exercises across 0 core concepts. Master problem-solving with a structured learning path designed for modern developers.

About CoffeeScript

CoffeeScript is a language which transpiles into JavaScript, used for making dynamic websites (both in the web browser, and on the server). The transpiler is used to transform CoffeeScript code into JavaScript before running, to keep compatibility and the same performance of JavaScript while providing many new features!

CoffeeScript was created to provide a simplified way to write JavaScript, based on a blend of the Ruby and Python languages. One difference is the use of indentation and arrows to replace JavaScript's verbose function code, and introduces useful features from functional languages including pattern matching.

CoffeeScript is one of many new languages that transpiles to JavaScript, including TypeScript and Flow - the community is growing, and these types of languages are very popular.

Key Features of CoffeeScript

Transpiles to JavaScript

Same language, better syntax. Use CoffeeScript anywhere JavaScript is used.

Human friendly syntax

Inspired by Ruby and Python, CoffeeScript has a simple, readable, and easy-to-use syntax.

Dynamically typed

Easy to write, easy to read.

Large package ecosystem

CoffeeScript can use any of the 1.3 million+ JavaScript libraries.

Developer happiness

Combine JavaScript's power with your happiness

Multi-paradigm

Use which ever paradigm you want: functional, object-oriented or imperative programming.

Transpiles to JavaScript

Same language, better syntax. Use CoffeeScript anywhere JavaScript is used.

Human friendly syntax

Inspired by Ruby and Python, CoffeeScript has a simple, readable, and easy-to-use syntax.

Dynamically typed

Easy to write, easy to read.

Large package ecosystem

CoffeeScript can use any of the 1.3 million+ JavaScript libraries.

Developer happiness

Combine JavaScript's power with your happiness

Multi-paradigm

Use which ever paradigm you want: functional, object-oriented or imperative programming.

Dive into CoffeeScript practice challenges

Accumulate

Level 3

Implement the `accumulate` operation, which, given a collection and an operation to perform on each element of the collection, returns a new collection containing the result of applying that operation to each element of the input collection.

Acronym

Level 2

Convert a long phrase to its acronym.

Anagram

Level 2

Given a word and a list of possible anagrams, select the correct sublist.

Armstrong Numbers

Level 2

Determine if a number is an Armstrong number.

Bank Account

Level 3

Simulate a bank account supporting opening/closing, withdraws, and deposits of money. Watch out for concurrent transactions!

Beer Song

Level 2

Produce the lyrics to that beloved classic, that field-trip favorite: 99 Bottles of Beer on the Wall.

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CoffeeScript

CoffeeScript is a language that compiles into JavaScript. It uses an alternative syntax to the Java-like syntax of JavaScript, and is one of many new transpiled languages used in web development.

Master CoffeeScript with
Interactive Learning

Elevate your CoffeeScript skills through 103 curated exercises across 0 core concepts. Master problem-solving with a structured learning path designed for modern developers.

About CoffeeScript

CoffeeScript is one of many new languages that transpiles to JavaScript, including TypeScript and Flow - the community is growing, and these types of languages are very popular.