How to use workerFunction method in Puppeteer

Best JavaScript code snippet using puppeteer

index.js

Source:index.js

...110      }111      if (job) {112        self.currentJobs++;113        if (self.workerFunction.length === 3) {114          self.workerFunction(jobId, job.payload, function(err, result, resultsMeta) {115            self.currentJobs--;116            self.markJobAsDone(jobId, err, result, resultsMeta);117            self.checkBacklogForJobs();118          });119        } else {120          self.workerFunction(job.payload, function(err, result, resultsMeta) {121            self.currentJobs--;122            self.markJobAsDone(jobId, err, result, resultsMeta);123            self.checkBacklogForJobs();124          });125        }126      }127      self.checkBacklogForJobs();128    });129  };130  this.checkBacklogForJobs = function() {131    this.locked = false;132    var jobId = self.backLog.pop();133    if (jobId) {134      self.attemptToProcess(jobId);...

createTaskProcessorWorker.js

Source:createTaskProcessorWorker.js

...8// handle errors correctly, hence try-catch9function callAndWrap(workerFunction, parameters, transferableObjects) {10  var resultOrPromise;11  try {12    resultOrPromise = workerFunction(parameters, transferableObjects);13    return resultOrPromise; // errors handled by Promise14  } catch (e) {15    return when.reject(e);16  }17}18/**19 * Creates an adapter function to allow a calculation function to operate as a Web Worker,20 * paired with TaskProcessor, to receive tasks and return results.21 *22 * @function createTaskProcessorWorker23 *24 * @param {createTaskProcessorWorker.WorkerFunction} workerFunction The calculation function,25 *        which takes parameters and returns a result.26 * @returns {createTaskProcessorWorker.TaskProcessorWorkerFunction} A function that adapts the...

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3  const browser = await puppeteer.launch();4  const page = await browser.newPage();5  await page.waitForSelector('a.storylink');6  const stories = await page.evaluate(() => {7    const anchors = Array.from(document.querySelectorAll('a.storylink'));8    return anchors.map(anchor => anchor.textContent);9  });10  console.log(stories);11  await browser.close();12})();13const puppeteer = require('puppeteer');14(async () => {15  const browser = await puppeteer.launch();16  const page = await browser.newPage();17  await page.waitForSelector('a.storylink');18  const stories = await page.evaluate(() => {19    const anchors = Array.from(document.querySelectorAll('a.storylink'));20    return anchors.map(anchor => anchor.textContent);21  });22  console.log(stories);23  await browser.close();24})();25const puppeteer = require('puppeteer');26(async () => {27  const browser = await puppeteer.launch();28  const page = await browser.newPage();29  await page.waitForSelector('a.storylink');30  const stories = await page.evaluate(() => {31    const anchors = Array.from(document.querySelectorAll('a.storylink'));32    return anchors.map(anchor => anchor.textContent);33  });34  console.log(stories);35  await browser.close();36})();37const puppeteer = require('puppeteer');38(async () => {39  const browser = await puppeteer.launch();40  const page = await browser.newPage();41  await page.waitForSelector('a.storylink');42  const stories = await page.evaluate(() => {43    const anchors = Array.from(document.querySelectorAll('a.storylink'));44    return anchors.map(anchor => anchor.textContent);45  });46  console.log(stories);47  await browser.close();48})();49const puppeteer = require('puppeteer');50(async () => {51  const browser = await puppeteer.launch();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4(async () => {5  const browser = await puppeteer.launch();6  const page = await browser.newPage();7  await page.screenshot({path: 'google.png'});8  await browser.close();9})();10const puppeteer = require('puppeteer');11module.exports = async function workerFunction() {12  const browser = await puppeteer.launch();13  const page = await browser.newPage();14  await page.screenshot({path: 'google.png'});15  await browser.close();16};17#### new PuppeteerWorker(options)18#### puppeteerWorker.run()19#### puppeteerWorker.terminate()20#### puppeteerWorker.on(event, callback)21#### puppeteerWorker.removeListener(event, callback)

Using AI Code Generation

1(async () => {2  const browser = await puppeteer.launch();3  const page = await browser.newPage();4  await page.screenshot({path: 'example.png'});5  await browser.close();6})();7(async () => {8  const browser = await puppeteer.launch();9  const page = await browser.newPage();10  await page.screenshot({path: 'example.png'});11  await browser.close();12})();13(async () => {14  const browser = await puppeteer.launch();15  const page = await browser.newPage();16  await page.screenshot({path: 'example.png'});17  await browser.close();18})();19(async () => {20  const browser = await puppeteer.launch();21  const page = await browser.newPage();22  await page.screenshot({path: 'example.png'});23  await browser.close();24})();25(async () => {26  const browser = await puppeteer.launch();27  const page = await browser.newPage();28  await page.screenshot({path: 'example.png'});29  await browser.close();30})();31(async () => {32  const browser = await puppeteer.launch();33  const page = await browser.newPage();34  await page.screenshot({path: 'example.png'});35  await browser.close();36})();37(async () => {38  const browser = await puppeteer.launch();39  const page = await browser.newPage();40  await page.screenshot({path: 'example.png'});41  await browser.close();42})();43(async () => {44  const browser = await puppeteer.launch();45  const page = await browser.newPage();46  await page.screenshot({path: 'example.png'});47  await browser.close();48})();

Using AI Code Generation

1const cluster = await Cluster.launch({2    puppeteerOptions: {3    },4});5await cluster.task(async ({page, data: url}) => {6    await page.goto(url);7    await page.screenshot({path: 'screenshot.png'});8});9await cluster.idle();10await cluster.close();11const { Cluster } = require('puppeteer-cluster');12module.exports = async function () {13    const cluster = await Cluster.launch({14        puppeteerOptions: {15        },16    });17    await cluster.task(async ({page, data: url}) => {18        await page.goto(url);19        await page.screenshot({path: 'screenshot.png'});20    });21    await cluster.idle();22    await cluster.close();23}24#### Cluster.launch(options)25#### cluster.task(task)26- `page` - The [Puppeteer Page](

Using AI Code Generation

1const puppeteer = require('puppeteer');2const workerFunction = require('./workerFunction.js');3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  await page.evaluate(workerFunction);7  await browser.close();8})();9module.exports = async () => {10  const div = document.createElement('div');11  div.innerText = 'Hello World';12  document.body.appendChild(div);13};14(async () => {15  const div = document.createElement('div');16  div.innerText = 'Hello World';17  document.body.appendChild(div);18})();19function workerFunction() {20  const div = document.createElement('div');21  div.innerText = 'Hello World';22  document.body.appendChild(div);23}24const workerFunction = () => {25  const div = document.createElement('div');26  div.innerText = 'Hello World';27  document.body.appendChild(div);28}29const workerFunction = function() {30  const div = document.createElement('div');31  div.innerText = 'Hello World';32  document.body.appendChild(div);33}34const workerFunction = function workerFunction() {35  const div = document.createElement('div');36  div.innerText = 'Hello World';37  document.body.appendChild(div);38}39const workerFunction = function workerFunction() {40  const div = document.createElement('div');41  div.innerText = 'Hello World';42  document.body.appendChild(div);43}44const workerFunction = function workerFunction() {45  const div = document.createElement('div');46  div.innerText = 'Hello World';47  document.body.appendChild(div);48}49const workerFunction = function workerFunction() {

Using AI Code Generation

1const puppeteer = require('puppeteer');2const workerFunction = require('./workerFunction.js');3(async () => {4  const browser = await puppeteer.launch({ headless: true });5  const page = await browser.newPage();6  await page.screenshot({ path: 'google.png' });7  await workerFunction(page);8  await browser.close();9})();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4const { promisify } = require('util');5const readFileAsync = promisify(fs.readFile);6(async () => {7    const browser = await puppeteer.launch();8    const page = await browser.newPage();9    const workerFunction = async () => {10        const { readFileAsync } = require('fs');11        const { promisify } = require('util');12        const readFileAsync = promisify(readFileAsync);13        const text = await readFileAsync('/tmp/foo.txt', 'utf8');14        return text;15    };16    const result = await page.evaluate(workerFunction);17    console.log(result);18    await browser.close();19})();20const result = await page.evaluate(workerFunction, 'foo.txt');21const puppeteer = require('puppeteer');22(async () => {23    const browser = await puppeteer.launch();24    await browser.newPage();25    await browser.evaluateOnNewDocument(() => {26        Object.defineProperty(navigator, 'webdriver', {27            get: () => false,28        });29    });30    const pages = await browser.pages();31    const page = pages[0];32    await page.waitFor(5000);33    await browser.close();34})();35const puppeteer = require('puppeteer');36(async () => {37    const browser = await puppeteer.launch();38    const page = await browser.newPage();39    await page.exposeFunction('add', (a, b) => a + b);40    await page.evaluate(() => {41        console.log(`add(

Using AI Code Generation

1const { workerFunction } = require('workerpool');2const scrape = async (url) => {3  const browser = await puppeteer.launch({ headless: true });4  const page = await browser.newPage();5  await page.goto(url);6  const data = await page.evaluate(() => {7    const tds = Array.from(document.querySelectorAll('td'));8    return tds.map((td) => td.innerText);9  });10  await browser.close();11  return data;12};13module.exports = workerFunction(scrape);14const { Pool } = require('workerpool');15const pool = new Pool();16];17const main = async () => {18  const results = await Promise.all(19    urls.map(async (url) => {20      return await pool.exec('test.js', [url]);21    })22  );23  console.log(results);24};25main();26const browser = await puppeteer.launch({27      executablePath: 'C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe',28    });29const { workerFunction } = require('workerpool');30const scrape = async (url, executablePath) => {31  const browser = await puppeteer.launch({ headless: true, executablePath });32  const page = await browser.newPage();33  await page.goto(url);

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