Worker Promise

Simple little Promise wrapper for WebWorkers. Make your workers pinky swear.

Install

npm i -s @belsrc/worker-promise

Use

// Example using webpack and worker-loader
import workerPromise from '@belsrc/worker-promise';
import Worker from './process.worker';

const worker = new Worker();

workerPromise(worker, { count: 500000 }).then(res => console.log(res));

also supports callbacks using the optional third parameter.

workerPromise(webworker, value[, callback])

with the callback being

function(error, value)

I don't advise using with async..await as it still blocks.

// async-await
const res = await workerPromise(worker, { count: 500000 });
console.log(res);
// calling worker
// processing: 2136.183837890625ms
// {error: null, data: Array(41538)}
// back on the main thread

// promise-then
workerPromise(worker, { count: 500000 }).then(res => console.log(res));
// calling worker
// back on the main thread
// processing: 2149.153076171875ms
// {error: null, data: Array(41538)}

// callback
const logRes = (err, res) => console.log(res);
workerPromise(worker, { count: 500000 }, logRes);
// calling worker
// back on the main thread
// processing: 2131.60205078125ms
// {error: null, data: Array(41538)}

LICENCE

MIT