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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 warnings with all npm packages installed. Try it out:

var warnings = require("warnings")

all documents on RunKit are public
require() any package directly from npm
use arrow functions, classes, template strings, and most of ES6
await any promise instead of using callbacks (example)
create your own embedded node.js snippets

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warnings v1.0.1

Output warnings to the terminal for possible critical issues. These issues can then be ignored by your users using options.

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