Drop-in replacement for `fs.existsSync` with zero dependencies. Other libs I found either have crucial differences from fs.existsSync, or unnecessary dependencies. See README.md for more info.

Library to help write libraries that accept both promises and callbacks.

co using your choice of promise implementation

Run multiple promise-returning & async functions with limited concurrency

Resolves a promise after a specified delay

Essential utils for promises

Bare bones Promises/A+ implementation

Turns async function into sync via JavaScript wrapper of Node event loop

Writing asynchronous actions in synchronous style

Call a function in a Node version found in PATH

A basic but performant promise implementation

Make synchronous web requests

Map-like, concurrent promise processing for Node.js

retry for functions returning a promise

Creates a Promise that waits for a single event

support for asynchronous development with a Promise based task Scheduler, several different Promise implementations (synchronous, idle, asynchronous and native runtime wrappers), await helpers, and aliases all built and tested using TypeScript.

Retry a promise-returning or async function

Make a callback- or promise-based function support both promises and callbacks.

A tiny (208B to 260B) utility to remove items recursively

A Node.js communication port that can pass messages synchronously between workers