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How to use pollRaf method in Puppeteer

Best JavaScript code snippet using puppeteer

dom.js

Source:dom.js

...840    state,841    root842  }) => {843    let lastElement;844    return injected.pollRaf((progress, continuePolling) => {845      const elements = injected.querySelectorAll(parsed, root || document);846      const element = elements[0];847      const visible = element ? injected.isVisible(element) : false;848      if (lastElement !== element) {849        lastElement = element;850        if (!element) {851          progress.log(`  selector did not resolve to any element`);852        } else {853          if (elements.length > 1) {854            if (strict) throw new Error(`strict mode violation: selector resolved to ${elements.length} elements.`);855            progress.log(`  selector resolved to ${elements.length} elements. Proceeding with the first one.`);856          }857          progress.log(`  selector resolved to ${visible ? 'visible' : 'hidden'} ${injected.previewNode(element)}`);858        }859      }860      switch (state) {861        case 'attached':862          return element ? element : continuePolling;863        case 'detached':864          return !element ? undefined : continuePolling;865        case 'visible':866          return visible ? element : continuePolling;867        case 'hidden':868          return !visible ? undefined : continuePolling;869      }870    });871  }, {872    parsed: selector.parsed,873    strict: selector.strict,874    state,875    root876  });877}878function dispatchEventTask(selector, type, eventInit) {879  return injectedScript => injectedScript.evaluateHandle((injected, {880    parsed,881    strict,882    type,883    eventInit884  }) => {885    return injected.pollRaf((progress, continuePolling) => {886      const element = injected.querySelector(parsed, document, strict);887      if (!element) return continuePolling;888      progress.log(`  selector resolved to ${injected.previewNode(element)}`);889      injected.dispatchEvent(element, type, eventInit);890    });891  }, {892    parsed: selector.parsed,893    strict: selector.strict,894    type,895    eventInit896  });897}898function textContentTask(selector) {899  return injectedScript => injectedScript.evaluateHandle((injected, {900    parsed,901    strict902  }) => {903    return injected.pollRaf((progress, continuePolling) => {904      const element = injected.querySelector(parsed, document, strict);905      if (!element) return continuePolling;906      progress.log(`  selector resolved to ${injected.previewNode(element)}`);907      return element.textContent;908    });909  }, {910    parsed: selector.parsed,911    strict: selector.strict912  });913}914function innerTextTask(selector) {915  return injectedScript => injectedScript.evaluateHandle((injected, {916    parsed,917    strict918  }) => {919    return injected.pollRaf((progress, continuePolling) => {920      const element = injected.querySelector(parsed, document, strict);921      if (!element) return continuePolling;922      progress.log(`  selector resolved to ${injected.previewNode(element)}`);923      if (element.namespaceURI !== 'http://www.w3.org/1999/xhtml') return 'error:nothtmlelement';924      return {925        innerText: element.innerText926      };927    });928  }, {929    parsed: selector.parsed,930    strict: selector.strict931  });932}933function innerHTMLTask(selector) {934  return injectedScript => injectedScript.evaluateHandle((injected, {935    parsed,936    strict937  }) => {938    return injected.pollRaf((progress, continuePolling) => {939      const element = injected.querySelector(parsed, document, strict);940      if (!element) return continuePolling;941      progress.log(`  selector resolved to ${injected.previewNode(element)}`);942      return element.innerHTML;943    });944  }, {945    parsed: selector.parsed,946    strict: selector.strict947  });948}949function getAttributeTask(selector, name) {950  return injectedScript => injectedScript.evaluateHandle((injected, {951    parsed,952    strict,953    name954  }) => {955    return injected.pollRaf((progress, continuePolling) => {956      const element = injected.querySelector(parsed, document, strict);957      if (!element) return continuePolling;958      progress.log(`  selector resolved to ${injected.previewNode(element)}`);959      return element.getAttribute(name);960    });961  }, {962    parsed: selector.parsed,963    strict: selector.strict,964    name965  });966}967function inputValueTask(selector) {968  return injectedScript => injectedScript.evaluateHandle((injected, {969    parsed,970    strict971  }) => {972    return injected.pollRaf((progress, continuePolling) => {973      const element = injected.querySelector(parsed, document, strict);974      if (!element) return continuePolling;975      progress.log(`  selector resolved to ${injected.previewNode(element)}`);976      if (element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA' && element.nodeName !== 'SELECT') return 'error:hasnovalue';977      return element.value;978    });979  }, {980    parsed: selector.parsed,981    strict: selector.strict982  });983}984function elementStateTask(selector, state) {985  return injectedScript => injectedScript.evaluateHandle((injected, {986    parsed,987    strict,988    state989  }) => {990    return injected.pollRaf((progress, continuePolling) => {991      const element = injected.querySelector(parsed, document, strict);992      if (!element) return continuePolling;993      progress.log(`  selector resolved to ${injected.previewNode(element)}`);994      return injected.checkElementState(element, state);995    });996  }, {997    parsed: selector.parsed,998    strict: selector.strict,999    state1000  });1001}1002const kUnableToAdoptErrorMessage = 'Unable to adopt element handle from a different document';...

DOMWorld.js

Source:DOMWorld.js

...485  let timedOut = false;486  if (timeout)487    setTimeout(() => timedOut = true, timeout);488  if (polling === 'raf')489    return await pollRaf();490  if (polling === 'mutation')491    return await pollMutation();492  if (typeof polling === 'number')493    return await pollInterval(polling);494  /**495   * @return {!Promise<*>}496   */497  function pollMutation() {498    const success = predicate.apply(null, args);499    if (success)500      return Promise.resolve(success);501    let fulfill;502    const result = new Promise(x => fulfill = x);503    const observer = new MutationObserver(mutations => {504      if (timedOut) {505        observer.disconnect();506        fulfill();507      }508      const success = predicate.apply(null, args);509      if (success) {510        observer.disconnect();511        fulfill(success);512      }513    });514    observer.observe(document, {515      childList: true,516      subtree: true,517      attributes: true518    });519    return result;520  }521  /**522   * @return {!Promise<*>}523   */524  function pollRaf() {525    let fulfill;526    const result = new Promise(x => fulfill = x);527    onRaf();528    return result;529    function onRaf() {530      if (timedOut) {531        fulfill();532        return;533      }534      const success = predicate.apply(null, args);535      if (success)536        fulfill(success);537      else538        requestAnimationFrame(onRaf);...

FrameManager.js

Source:FrameManager.js

...423  const predicate = new Function(predicateBody);424  let timedOut = false;425  setTimeout(() => timedOut = true, timeout);426  if (polling === 'raf')427    await pollRaf();428  else if (polling === 'mutation')429    await pollMutation();430  else if (typeof polling === 'number')431    await pollInterval(polling);432  return !timedOut;433  /**434   * @return {!Promise<!Element>}435   */436  function pollMutation() {437    if (predicate())438      return Promise.resolve();439    let fulfill;440    const result = new Promise(x => fulfill = x);441    const observer = new MutationObserver(mutations => {442      if (timedOut || predicate()) {443        observer.disconnect();444        fulfill();445      }446    });447    observer.observe(document, {448      childList: true,449      subtree: true,450      attributes: true451    });452    return result;453  }454  /**455   * @return {!Promise}456   */457  function pollRaf() {458    let fulfill;459    const result = new Promise(x => fulfill = x);460    onRaf();461    return result;462    function onRaf() {463      if (timedOut || predicate())464        fulfill();465      else466        requestAnimationFrame(onRaf);467    }468  }469  /**470   * @param {number} pollInterval471   * @return {!Promise}...

WaitTask.js

Source:WaitTask.js

...130) {131  const predicate = new Function('...args', predicateBody)132  let timedOut = false133  if (timeout) setTimeout(() => (timedOut = true), timeout)134  if (polling === 'raf') return pollRaf()135  if (polling === 'mutation') return pollMutation()136  if (typeof polling === 'number') return pollInterval(polling)137  /**138   * @return {Promise<*>}139   */140  function pollMutation () {141    const success = predicate.apply(null, args)142    if (success) return Promise.resolve(success)143    let fulfill144    const result = new Promise(resolve => (fulfill = resolve))145    const observer = new MutationObserver(mutations => {146      if (timedOut) {147        observer.disconnect()148        fulfill()...

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3  const browser = await puppeteer.launch({headless: false});4  const page = await browser.newPage();5  await page.type('input[title="Search"]', 'puppeteer');6  await page.keyboard.press('Enter');7  await page.waitForNavigation();8  await page.waitForSelector('a[href="

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('input[name="q"]');6  await page.type('input[name="q"]', 'Puppeteer');7  await page.click('input[name="btnK"]');8  await page.waitForSelector('#resultStats');9  const result = await page.evaluate(() => {10    return document.querySelector('#resultStats').textContent;11  });12  console.log(result);13  await browser.close();14})();15const puppeteer = require('puppeteer');16(async () => {17  const browser = await puppeteer.launch();18  const page = await browser.newPage();19  await page.waitForSelector('input[name="q"]');20  await page.type('input[name="q"]', 'Puppeteer');21  await page.click('input[name="btnK"]');22  await page.waitForSelector('#resultStats');23  const result = await page.evaluate(() => {24    return document.querySelector('#resultStats').textContent;25  });26  console.log(result);27  await browser.close();28})();29const puppeteer = require('puppeteer');30(async () => {31  const browser = await puppeteer.launch();32  const page = await browser.newPage();33  await page.waitForSelector('input[name="q"]');34  await page.type('input[name="q"]', 'Puppeteer');35  await page.click('input[name="btnK"]');36  await page.waitForNavigation();37  const result = await page.evaluate(() => {38    return document.querySelector('#resultStats').textContent;39  });40  console.log(result);41  await browser.close();42})();43const puppeteer = require('puppeteer');44(async () => {45  const browser = await puppeteer.launch();46  const page = await browser.newPage();47  await page.waitForSelector('input[name="q"]');48  await page.type('input[name="q"]', 'Puppeteer');49  await page.click('input[name="btnK"]');

Using AI Code Generation

1const puppeteer = require('puppeteer');2const path = require('path');3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  await page.waitForSelector('h1');7  const dimensions = await page.evaluate(() => {8    return {9    };10  });11  console.log('Dimensions:', dimensions);12  await browser.close();13})();14const puppeteer = require('puppeteer');15const path = require('path');16(async () => {17  const browser = await puppeteer.launch();18  const page = await browser.newPage();19  await page.waitForSelector('h1');20  const dimensions = await page.evaluate(() => {21    return {22    };23  });24  console.log('Dimensions:', dimensions);25  await browser.close();26})();

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3    const browser = await puppeteer.launch({4    });5    const page = await browser.newPage();6    await page.waitForSelector('h1');7    await page.pollRaf();8    await page.evaluate(() => {9        document.querySelector('h1').innerText = 'Hello World';10    });11    await page.pollRaf();12    await page.waitForTimeout(2000);13    await browser.close();14})();15const puppeteer = require('puppeteer');16(async () => {17    const browser = await puppeteer.launch({18    });19    const page = await browser.newPage();20    await page.waitForSelector('h1');21    await page.pollMutation();22    await page.evaluate(() => {23        document.querySelector('h1').innerText = 'Hello World';24    });25    await page.pollMutation();26    await page.waitForTimeout(2000);27    await browser.close();28})();29const puppeteer = require('puppeteer');30(async () => {31    const browser = await puppeteer.launch({32    });33    const page = await browser.newPage();34    await page.waitForSelector('h1');35    await page.poll();36    await page.evaluate(() => {37        document.querySelector('h1').innerText = 'Hello World';38    });39    await page.poll();40    await page.waitForTimeout(2000);41    await browser.close();42})();43const puppeteer = require('puppeteer');44(async () => {45    const browser = await puppeteer.launch({46    });47    const page = await browser.newPage();48    await page.waitForSelector('h1');49    await page.poll();50    await page.evaluate(() => {51        document.querySelector('h1').innerText = 'Hello World';52    });53    await page.poll();54    await page.waitForTimeout(200

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