Factorial in Coffeescript

Welcome to the Factorial in Coffeescript page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

factorial = (n) ->
    return usage() if n < 0
    return 1 if n == "0"
    [1..n].reduce (x, y) -> x * y
    
usage = () ->
    "Usage: please input a non-negative integer"
    
main = () ->
    args = process.argv
    return factorial(args[2]) if args.length == 3 and isFinite(args[2]) and args[2] != ""
    usage()

console.log main()

Factorial in Coffeescript was written by:

• Hanyuan Li
• Jeremy Grifski

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.