Sign Up for Free

RunKit +

Try any Node.js package right in your browser

This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including optimist with all npm packages installed. Try it out:

var optimist = require("optimist")

This service is provided by RunKit and is not affiliated with npm, Inc or the package authors.

optimist v0.6.1

Light-weight option parsing with an argv hash. No optstrings attached.

RunKit is a free, in-browser JavaScript dev environment for prototyping Node.js code, with every npm package installed. Sign up to share your code.
Sign Up for Free