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How to use waitForSelectorInPage method in Puppeteer

Best JavaScript code snippet using puppeteer

DOMWorld.js

Source:DOMWorld.js

...390    }391    /**392     * @internal393     */394    async waitForSelectorInPage(queryOne, selector, options, binding) {395        const { visible: waitForVisible = false, hidden: waitForHidden = false, timeout = this._timeoutSettings.timeout(), } = options;396        const polling = waitForVisible || waitForHidden ? 'raf' : 'mutation';397        const title = `selector \`${selector}\`${waitForHidden ? ' to be hidden' : ''}`;398        async function predicate(selector, waitForVisible, waitForHidden) {399            const node = predicateQueryHandler400                ? (await predicateQueryHandler(document, selector))401                : document.querySelector(selector);402            return checkWaitForOptions(node, waitForVisible, waitForHidden);403        }404        const waitTaskOptions = {405            domWorld: this,406            predicateBody: helper.makePredicateString(predicate, queryOne),407            title,408            polling,...

QueryHandler.js

Source:QueryHandler.js

...24                return elementHandle;25            await jsHandle.dispose();26            return null;27        };28        internalHandler.waitFor = (domWorld, selector, options) => domWorld.waitForSelectorInPage(handler.queryOne, selector, options);29    }30    if (handler.queryAll) {31        internalHandler.queryAll = async (element, selector) => {32            const jsHandle = await element.evaluateHandle(handler.queryAll, selector);33            const properties = await jsHandle.getProperties();34            await jsHandle.dispose();35            const result = [];36            for (const property of properties.values()) {37                const elementHandle = property.asElement();38                if (elementHandle)39                    result.push(elementHandle);40            }41            return result;42        };...

AriaQueryHandler.js

Source:AriaQueryHandler.js

...55            const element = await queryOne(document, selector);56            return element;57        },58    };59    return domWorld.waitForSelectorInPage((_, selector) => globalThis.ariaQuerySelector(selector), selector, options, binding);60};61const queryAll = async (element, selector) => {62    const exeCtx = element.executionContext();63    const { name, role } = parseAriaSelector(selector);64    const res = await queryAXTree(exeCtx._client, element, name, role);65    return Promise.all(res.map((axNode) => exeCtx._adoptBackendNodeId(axNode.backendDOMNodeId)));66};67const queryAllArray = async (element, selector) => {68    const elementHandles = await queryAll(element, selector);69    const exeCtx = element.executionContext();70    const jsHandle = exeCtx.evaluateHandle((...elements) => elements, ...elementHandles);71    return jsHandle;72};73/**...

Using AI Code Generation

1const puppeteer = require('puppeteer');2const { waitForSelectorInPage } = require('./waitForSelectorInPage');3(async () => {4  const browser = await puppeteer.launch({ headless: false });5  const page = await browser.newPage();6  await page.type('input[name="q"]', 'puppeteer');7  await page.click('input[name="btnK"]');8  await waitForSelectorInPage(page, 'h3.LC20lb');9  await page.screenshot({ path: 'example.png' });10  await browser.close();11})();12const puppeteer = require('puppeteer');13async function waitForSelectorInPage(page, selector, options = {}) {14  const { timeout = 30 * 1000 } = options;15  let lastError;16  const startTime = Date.now();17  while (Date.now() - startTime < timeout) {18    try {19      await page.waitForSelector(selector, options);20      return;21    } catch (err) {22      lastError = err;23    }24  }25  throw lastError;26}27module.exports = { waitForSelectorInPage };28const puppeteer = require('puppeteer');29const { waitForSelectorInPage } = require('./waitForSelectorInPage');30(async () => {31  const browser = await puppeteer.launch({ headless: false });32  const page = await browser.newPage();33  await page.type('input[name="q"]', 'puppeteer');34  await page.click('input[name="btnK"]');35  await waitForSelectorInPage(page, 'h3.LC20lb');36  await page.screenshot({ path: 'example.png' });37  await browser.close();38})();39const puppeteer = require('puppeteer');40async function waitForSelectorInPage(page, selector, options = {}) {41  const { timeout = 30 * 1000 } = options;42  let lastError;43  const startTime = Date.now();44  while (Date.now() - startTime < timeout) {45    try {46      await page.waitForSelector(selector, options);

Using AI Code Generation

1const puppeteer = require('puppeteer');2const expect = require('chai').expect;3const { waitForSelectorInPage } = require('./waitForSelectorInPage');4(async () => {5  const browser = await puppeteer.launch({headless: false});6  const page = await browser.newPage();7  await waitForSelectorInPage(page, 'input[name="q"]');8  await page.type('input[name="q"]', 'Puppeteer');9  await page.keyboard.press('Enter');10  await waitForSelectorInPage(page, '#search');11  const results = await page.$$('#search .g');12  expect(results.length).to.be.above(0);13  await browser.close();14})();

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