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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 lockify with all npm packages installed. Try it out:

var lockify = require("lockify")

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lockify v1.0.0

If your promise-returning function can't run concurrently, lockify it!

Lockify

Use promises to ensure a function doesn't execute concurrently

Most asynchronous functions are fine to run concurrently with themselves. But when they're not - lockify 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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