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 looks-like-number with all npm packages installed. Try it out:

var looksLikeNumber = require("looks-like-number")

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

looks-like-number v1.0.7

General utility function to verify its argument looks like a number

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