CoffeeScript online compiler

Write, Run & Share CoffeeScript code online using OneCompiler’s CoffeeScript online compiler for free. It’s a sleek and efficient environment to explore CoffeeScript's syntax and compile it directly into JavaScript.

About CoffeeScript

CoffeeScript is a lightweight language that compiles into JavaScript. It introduces a more readable and expressive syntax by eliminating much of the boilerplate found in traditional JavaScript. CoffeeScript supports all JavaScript features but with a more concise syntax.

Sample Code

The following CoffeeScript program prints a greeting:

console.log 'Hello, OneCompiler!'

Taking inputs (stdin)

CoffeeScript itself doesn't support native input, but in environments like OneCompiler, you can simulate input using readline-sync or predefined variables.

readline = require 'readline-sync'
name = readline.question 'Enter your name: '
console.log "Hello, #{name}!"

Syntax Basics

Variables

name = 'OneCompiler'
age = 25

Conditionals

if age >= 18
  console.log 'Adult'
else
  console.log 'Minor'

Loops

For loop

for i in [1..5]
  console.log i

While loop

i = 1
while i <= 5
  console.log i
  i++

Functions

square = (x) -> x * x
console.log square 4

Arrays and Objects

fruits = ['apple', 'banana', 'cherry']
person = name: 'Alice', age: 30

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This guide provides a quick reference to CoffeeScript syntax and features. Start writing CoffeeScript code using OneCompiler’s CoffeeScript online compiler today!