Centaurus NPM | npm.io

Centaurus

Web worker interface. Simplified.

// load up
const Centaurus = require('centaurus');

// create worker, pass path to our worker
let C = new Centaurus('https://unpkg.com/centaurus/dist/centaurus.worker.min.js');

// load umd scripts, be it lodash, whatever.
C.loadScripts(
  'https://unpkg.com/pako/dist/pako.min.js',
  'https://unpkg.com/lodash/lodash.min.js'
)
  .then(() => C.registerFunctions({
    saySomething: (resolve, reject, sayWhat) => {
      console.log(sayWhat);
      resolve();
    },
    checkMyImports: (resolve, reject, param1) => {
      console.log(param1, Boolean(pako) && Boolean(_));
      console.log('pako:', pako);
      console.log('lodash:', _);
      resolve();
    }
  }))
  .then(() => C.saySomething('Anyeonghaseyo!'))
  .then(() => C.checkMyImports('is pako and lodash found?'))
  .then(() => C.terminate())
  .catch(console.error);

Notes

How does it work?

All main-thread to worker-thread communications use promises.
UUIDv4 & Maps are used to identify incoming & outgoing messages.
serialize-javascript is used to serialize all messages.

How do I create global variable assignments within the worker?

Yes. Just assign self.whatever inside your functions.

And yes, your other functions can use them also.

C.registerFunctions({
    RegisterSomethinGlobal: (resolve, reject) => {
      self.name = 'xemasiv';
      resolve();
    },
    UseThatGlobal: (resolve, reject) => {
      console.log(name);
      resolve();
    }
  })
  .then(() => C.RegisterSomethinGlobal())
  .then(() => C.UseThatGlobal())
  .catch(console.error);