tinyqueue.js

A teensy tiny sequential processing queue.

TinyQueue returns a coroutine that supports both sync and async function execution. It uses an asyncronous generator function to allow manage concurrency during task execution. All methods return the queue object for chainability.

Installing / Getting started

Install tinyqueue.js with npm or Yarn

npm install tinyqueue.js
yarn add tinyqueue.js

This will add tinyqueue.js to your package.json's dependencies.

Usage

Import the module to your script and define a new TinyQueue object by passing in "tasks" (functions) to execute. Your queue object will hold them until you execute a run command:

// define your functions
const fn1 = () => {
  return new Promise((resolve) => {
    resolve('fn1 execution!');
  });
};
const fn2 = () => { return 'fn2 execution!'; };
 
// place them in a queue
const queue = new TinyQueue(fn1, fn2, ...);
 
// start the queue
queue.run();
 
// wait until all tasks are processed
queue.done((results) => {
  console.log(results); // [ Promise { 'fn1 executed!' }, 'fn2 executed!' ]
});

API Reference

The full API docs/reference can be found on GitHub Pages.

Contributing

Prerequisites

Yarn is heavily favored over npm, so please make sure you have Yarn installed prior to installing dependencies and contributing.

Setting up Dev

Clone the repo and install all packages:

https://github.com/nielse63/tinyqueue.js.git
cd tinyqueue.js/
yarn install

Any work should be done files in the src/ directory.

Building

Once you have made your changes to the source file, build to the lib/ directory:

yarn run build

This will lint the source and test files, transpile the script using Babel, and rebuild the documentation.

Tests

After you've built your changes, make sure to run the test suite, and write any new tests that apply to your changes:

yarn test

Tests are run with Mocha using Chai as the assertion library. Code coverage is managed by Coveralls.

Style guide

Style is maintained with eslint, following the Prettier and XO styleguides. All JavaScript is strongly typed using Flow.

Licensing

tinyqueue.js is licensed under the MIT License. A copy can be found here.