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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 400,000 packages pre-installed, including signal with all npm packages installed. Try it out:

var signal = require("signal")

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signal v4.0.2

An evented semaphore.

Build Status Coverage Status

A place for callbacks to wait util we're ready for them.

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.
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