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

awaitqueue

v3.0.2

Published

JavaScript utility to enqueue asynchronous tasks and run them sequentially one after another

Downloads

91,591

Readme

AwaitQueue

JavaScript utility to enqueue asynchronous tasks and run them sequentially one after another. For Node.js and the browser.

Installation

$ npm install awaitqueue

Usage

  • In ES6:
import {
  AwaitQueue,
  AwaitQueueTask,
  AwaitQueueTaskDump,
  AwaitQueueStoppedError,
  AwaitQueueRemovedTaskError
} from 'awaitqueue';
  • In CommonJS:
const { 
  AwaitQueue,
  AwaitQueueTask,
  AwaitQueueTaskDump,
  AwaitQueueStoppedError,
  AwaitQueueRemovedTaskError
} = require('awaitqueue');

Types

type AwaitQueueTask

type AwaitQueueTask<T> = () => (T | PromiseLike<T>);

TypeScript type representing a function that returns a value T or a Promise that resolves with T.

type AwaitQueueTaskDump

type AwaitQueueTaskDump =
{
  idx: number;
  task: AwaitQueueTask<unknown>;
  name?: string;
  enqueuedTime: number;
  executionTime: number;
};

TypeScript type representing an item in the array returned by the awaitQueue.dump() method.

  • idx: Index of the pending task in the queue (0 means the task being processed now).
  • task: The function to be executed.
  • name: The name of the given function (if any) or the name argument given to awaitQueue.push() method (if any).
  • enqueuedTime: Time in milliseconds since the task was enqueued, this is, since awaitQueue.push() was called until its execution started or until now if not yet started.
  • executionTime: Time in milliseconds since the task execution started (or 0 if not yet started).

API

new AwaitQueue()

Creates an AwaitQueue instance.

awaitQueue.size: number

Number of enqueued pending tasks.

async awaitQueue.push(task: AwaitQueueTask<T>, name?: string): Promise<T>

Accepts a task as argument and enqueues it after pending tasks. Once processed, the push() method resolves (or rejects) with the result returned by the given task.

  • @param task: Asynchronous or asynchronous function.
  • @param name: Optional task name (useful for awaitQueue.dump() method).

awaitQueue.stop(): void

Make pending tasks reject with an instance of AwaitQueueStoppedError. The AwaitQueue instance is still usable for future tasks added via push() method.

awaitQueue.remove(taskIdx: number): void

Removes the pending task with given index. The task is rejected with an instance of AwaitQueueRemovedTaskError.

  • @param taskIdx: Index of the pending task to be removed.

awaitQueue.dump(): AwaitQueueTaskDump[]

Returns an array with information about pending tasks in the queue. See the AwaitQueueTaskDump type above.

Usage example

See test.ts file.

Author

License

ISC