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 only-one-tab with all npm packages installed. Try it out:

var onlyOneTab = require("only-one-tab")

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

only-one-tab v1.0.4

Run a function in exactly one open tab, switching to another if closed

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