Package Exports

zeno-queue
zeno-queue/index.js

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Readme

ZenoQueue

A minimal, high-performance Promise-based queue.

Features

~40% faster than array-based queues
Zero dependencies
Tiny (398 bytes)
Simple API
Sequential Promise execution
AbortController cancellation

Installation

npm install zeno-queue

import { ZenoQueue } from 'https://unpkg.com/zeno-queue/index.js';

Usage

import { ZenoQueue } from 'zeno-queue';

const queue = new ZenoQueue();

// Queue an operation
queue(() => console.log('First'));

// Queue an async operation
queue(async () => {
    await someAsyncWork();
    console.log('Second');
});

// Cancel an operation
const task = queue(processData);
task.abort();

Note, tasks can only be aborted before they have started. If you need the ability to cancel a long running task, you should use an AbortController signal in your callback.

const controller = new AbortController();

queue(() => {
    for (let i=0; i<100000; i++) {
        if (controller.signal.aborted) {
            return;
        }
        // your operation goes here
    }
});


controller.abort();

Performance

Tested with 100,000 operations:

ZenoQueue:   680.84ms
Array Queue: 1127.90ms

Why ZenoQueue?

ZenoQueue processes operations sequentially with O(1) complexity by chaining Promises rather than using traditional O(n) Array operations.