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 which with all npm packages installed. Try it out:

var which = require("which")

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

which v2.0.1

Like which(1) unix command. Find the first instance of an executable in the PATH.

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