npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

promise-wip-throttler

v0.2.1

Published

throttle promises

Downloads

1,511

Readme

promise-wip-throttler

Build Status

Set a WIP(work in progress) limit for your promises.

npm install promise-wip-throttler

Example use cases

  • Make sure to not overload an external service.
  • Limit the number of concurrent memory heavy and/or CPU intensive tasks.

Usage

The following example creates a throttler that will only allow 2 heavyOperations to run concurrently. The third one will not be started until one of the first two resolves.


import { createThrottler } from 'promise-wip-throttler';

const throttler = createThrottler(2);

throttler(() => heavyOperation());
throttler(() => heavyOperation());
throttler(() => heavyOperation());
throttler(() => heavyOperation());
throttler(() => heavyOperation());
throttler(() => heavyOperation());
throttler(() => heavyOperation());

Decorator

The throttler is also available as a higher order function that can wraps the target function. The throttled function returns a promise that will resolve once the function has finished executing.


import { throttled } from 'promise-wip-throttler';


function mySlowFunction() {
 // Heavy lifting, retuns a promise
}

const myThrottledSlowFunction = throttled(1)(mySlowFunction);

// Will only run one at a time
myThrottledSlowFunction().then(() => { console.log('I\'m done'); });
myThrottledSlowFunction().then(() => { console.log('I\'m done'); });
myThrottledSlowFunction().then(() => { console.log('I\'m done'); });
myThrottledSlowFunction().then(() => { console.log('I\'m done'); });
myThrottledSlowFunction().then(() => { console.log('I\'m done'); });
myThrottledSlowFunction().then(() => { console.log('I\'m done'); });

License

MIT

Copyright Daniel Lundin 2017