browser-worker

web-worker

Simple class for use web worker

Api

Api description

Install by bower

bower install browser-worker

Install by npm

npm install browser-worker--save

### Example:
```js
let count = 0;

let doit = async ($setTo, worker, workerEmulate) => {

    let setResult = (selector, mess, isOk, noCount) => {

        let $block = $setTo.find(selector);

        $block
            .text(mess)
            .addClass(isOk ? 'success' : 'error');

        if (!noCount)
            $block.before($('<b/>', {
                text: `TEST #${++count}`,
                class: 'test_number'
            }));
    };


    try {

        let correctSum = 500000500000 ;

        let ts = Date.now();
        let isOK;
        let res;

        ts = Date.now();
        res = await workerEmulate.eventSend('sum', 0);
        ts = Date.now() - ts;
        isOK = res === correctSum;

        setResult('.sum-emulator', `SUM-em 1+2+...+1000 is ${isOK ? 'Ok' : res}`, isOK);
        console.info('Emulator sum time', ts);

        ts = Date.now();
        res = await worker.eventSend('sum', 0);
        ts = Date.now() - ts;
        isOK = res === correctSum;

        setResult('.sum', `SUM first query 1+2+...+1000 is ${isOK ? 'Ok' : res}`, isOK);
        console.info('First sum time', ts);

        ts = Date.now();
        res = await worker.eventSend('sum', 0);
        ts = Date.now() - ts;
        isOK = res === correctSum;

        setResult('.sum-sec', `SUM second query 1+2+...+1000 is ${isOK ? 'Ok' : res}`, isOK);
        console.info('Second sum time', ts);

    } catch (e) {

        if (e) {
            setResult('.error', e.message || 'NULL MESSAGE');
        }

        console.log('error ', e);
        throw new Error(e);
    }
};

const forTest = () => {
    let $frame = $('#frame');
    let $setAuto = $('#auto');

    let worker = new window.BrowserWorkerClass();
    let workerEmulate = new window.BrowserWorkerClass();

    worker.eventAdd('sum', function(start) {

        for (let i = 0; i < 1000001; i++) {
            start += i;
        }

        return start;
    });

    workerEmulate.eventAdd('sum', function(start) {

        for (let i = 0; i < 1000001; i++) {
            start += i;
        }

        return start;
    });

    worker.run();
    workerEmulate.run(true);

    $setAuto.html($frame.html());

    // init worker ~150
    setTimeout(() => {
        doit($setAuto, worker, workerEmulate);
    }, 150);
};

$(function () {forTest(); });

Version

1.0.0

---

People

Author and developer is Igor Stcherbina

License

MIT

Free Software