NodeJS Understanding Worker thread

https://medium.com/swlh/understanding-nodejs-worker-thread-6212b95a0928

Worker threads are an exciting and useful module if you need to do CPU-intensive tasks in your Node.js application. It’s like threads without shared memory and, thus, without the potential race conditions they introduce. Since the worker_threads module became stable in Node.js v12 LTS, you should feel secure using it in production-grade apps!

https://superuser.com/questions/98868/how-do-i-disable-the-beep-in-osx-leopard-when-i-perform-an-invalid-action

https://apple.stackexchange.com/questions/96368/playing-alert-sounds-from-terminal

https://jeromewus.medium.com/why-i-refactor-tesseract-js-v2-50f750a9cfe2

https://github.com/naptha/tesseract.js/issues/340

var worker =

            window.OCRWorker ||

            new Tesseract.TesseractWorker({

                workerPath: workerPath,

                langPath: langPath,

                corePath: corePath

            });

        window.OCRWorker = worker;

        worker.recognize(image, 'eng', options).then(onSuccess);

    [3, 10, 20].forEach(num => (

      it(`recognize ${num} images with 1 worker`, (done) => {

        const worker = getWorker();

        Promise.all(

          Array(num).fill(0).map(() => worker.recognize(`${IMAGE_PATH}/simple.png`)),

        ).then((results) => {

          results.forEach(({ text }) => {

            expect(text).to.be(SIMPLE_TEXT);

          });

          worker.terminate();

          done();

        });

      }).timeout(60000)

    ));

  });

https://www.smashingmagazine.com/2021/06/image-text-conversion-react-tesseract-js-ocr/

https://golb.hplar.ch/2019/07/ocr-with-tesseractjs.html

https://stackoverflow.com/questions/57109649/unable-to-store-result-value-from-a-tesseract-function-to-a-global-variable-insi