How to use makePredicateString method in Puppeteer

Best JavaScript code snippet using puppeteer

DOMWorld.js

Source:DOMWorld.js

...402            return checkWaitForOptions(node, waitForVisible, waitForHidden);403        }404        const waitTaskOptions = {405            domWorld: this,406            predicateBody: helper.makePredicateString(predicate, queryOne),407            title,408            polling,409            timeout,410            args: [selector, waitForVisible, waitForHidden],411            binding,412        };413        const waitTask = new WaitTask(waitTaskOptions);414        const jsHandle = await waitTask.promise;415        const elementHandle = jsHandle.asElement();416        if (!elementHandle) {417            await jsHandle.dispose();418            return null;419        }420        return elementHandle;421    }422    async waitForXPath(xpath, options) {423        const { visible: waitForVisible = false, hidden: waitForHidden = false, timeout = this._timeoutSettings.timeout(), } = options;424        const polling = waitForVisible || waitForHidden ? 'raf' : 'mutation';425        const title = `XPath \`${xpath}\`${waitForHidden ? ' to be hidden' : ''}`;426        function predicate(xpath, waitForVisible, waitForHidden) {427            const node = document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;428            return checkWaitForOptions(node, waitForVisible, waitForHidden);429        }430        const waitTaskOptions = {431            domWorld: this,432            predicateBody: helper.makePredicateString(predicate),433            title,434            polling,435            timeout,436            args: [xpath, waitForVisible, waitForHidden],437        };438        const waitTask = new WaitTask(waitTaskOptions);439        const jsHandle = await waitTask.promise;440        const elementHandle = jsHandle.asElement();441        if (!elementHandle) {442            await jsHandle.dispose();443            return null;444        }445        return elementHandle;446    }...

helper.js

Source:helper.js

...170        window[name].callbacks.delete(seq);171    }172    return evaluationString(deliverErrorValue, name, seq, value);173}174function makePredicateString(predicate, predicateQueryHandler) {175    function checkWaitForOptions(node, waitForVisible, waitForHidden) {176        if (!node)177            return waitForHidden;178        if (!waitForVisible && !waitForHidden)179            return node;180        const element = node.nodeType === Node.TEXT_NODE ? node.parentElement : node;181        const style = window.getComputedStyle(element);182        const isVisible = style && style.visibility !== 'hidden' && hasVisibleBoundingBox();183        const success = waitForVisible === isVisible || waitForHidden === !isVisible;184        return success ? node : null;185        function hasVisibleBoundingBox() {186            const rect = element.getBoundingClientRect();187            return !!(rect.top || rect.bottom || rect.width || rect.height);188        }...

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');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.keyboard.press('Enter');8  await page.waitForNavigation();9  await page.waitForSelector('a[href*="puppeteer"]');10  const link = await page.$('a[href*="puppeteer"]');11  await link.click();12  await page.waitForNavigation();13  await page.waitForSelector('a[href*="api"]');14  const link2 = await page.$('a[href*="api"]');15  await link2.click();16  await page.waitForNavigation();17  await page.waitForSelector('a[href*="class"]');18  const link3 = await page.$('a[href*="class"]');19  await link3.click();20  await page.waitForNavigation();21  await page.waitForSelector('a[href*="page"]');22  const link4 = await page.$('a[href*="page"]');23  await link4.click();24  await page.waitForNavigation();25  await page.waitForSelector('a[href*="evaluate"]');26  const link5 = await page.$('a[href*="evaluate"]');27  await link5.click();28  await page.waitForNavigation();29  await page.waitForSelector('a[href*="evaluate"]');30  const link6 = await page.$('a[href*="evaluate"]');31  await link6.click();32  await page.waitForNavigation();33  await page.waitForSelector('a[href*="evaluate"]');34  const link7 = await page.$('a[href*="evaluate"]');35  await link7.click();36  await page.waitForNavigation();37  await page.waitForSelector('a[href*="evaluate"]');38  const link8 = await page.$('a[href*="evaluate"]');39  await link8.click();40  await page.waitForNavigation();41  await page.waitForSelector('a[href*="evaluate"]');42  const link9 = await page.$('a[href*="evaluate"]');43  await link9.click();44  await page.waitForNavigation();45  await page.waitForSelector('a[href*="evaluate"]');46  const link10 = await page.$('a[href*="evaluate"]');47  await link10.click();48  await page.waitForNavigation();49  await page.waitForSelector('a[href*="evaluate"]');50  const link11 = await page.$('a[href*

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4    const browser = await puppeteer.launch();5    const page = await browser.newPage();6    await page.screenshot({path: 'google.png'});7    await browser.close();8})();9const puppeteer = require('puppeteer');10const fs = require('fs');11(async () => {12    const browser = await puppeteer.launch();13    const page = await browser.newPage();14    await page.screenshot({path: 'google.png'});15    await browser.close();16})();17const puppeteer = require('puppeteer');18const fs = require('fs');19(async () => {20    const browser = await puppeteer.launch();21    const page = await browser.newPage();22    await page.screenshot({path: 'google.png'});23    await browser.close();24})();25const puppeteer = require('puppeteer');26const fs = require('fs');27(async () => {28    const browser = await puppeteer.launch();29    const page = await browser.newPage();30    await page.screenshot({path: 'google.png'});31    await browser.close();32})();33const puppeteer = require('puppeteer');34const fs = require('fs');35(async () => {36    const browser = await puppeteer.launch();37    const page = await browser.newPage();38    await page.screenshot({path: 'google.png'});39    await browser.close();40})();41const puppeteer = require('puppeteer');42const fs = require('fs');43(async () => {44    const browser = await puppeteer.launch();45    const page = await browser.newPage();46    await page.screenshot({path: 'google.png'});47    await browser.close();48})();49const puppeteer = require('puppeteer');50const fs = require('fs');51(async () => {52    const browser = await puppeteer.launch();53    const page = await browser.newPage();54    await page.screenshot({path: 'google.png'});55    await browser.close();56})();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const { makePredicateString } = require('puppeteer/lib/USKeyboardLayout.js');3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  await page.waitForSelector(makePredicateString('a', { text: 'Ask HN' }));7  await browser.close();8})();

Using AI Code Generation

1const puppeteer = require("puppeteer");2(async () => {3    const browser = await puppeteer.launch();4    const page = await browser.newPage();5    const search = await page.$("input[name='q']");6    const predicate = await search.evaluate(search => search.makePredicateString());7    console.log("makePredicateString method: ", predicate);8    await browser.close();9})();10makePredicateString method:  function makePredicateString() {11    return 'input[name="q"]';12}13Recommended Posts: How to use evaluateHandle() method in puppeteer?14How to use evaluate() method in puppeteer?15How to use evaluateOnNewDocument() method in puppeteer?16How to use evaluateHandleOnNewDocument() method in puppeteer?17How to use waitForFunction() method in puppeteer?18How to use waitForSelector() method in puppeteer?19How to use waitForXPath() method in puppeteer?20How to use waitForNavigation() method in puppeteer?21How to use waitForRequest() method in puppeteer?22How to use waitForResponse() method in puppeteer?23How to use waitFor() method in puppeteer?24How to use waitForTimeout() method in puppeteer?25How to use waitForEvent() method in puppeteer?26How to use waitForFileChooser() method in puppeteer?27How to use waitFor() method in puppeteer?28How to use waitForTimeout() method in puppeteer?29How to use waitForEvent() method in puppeteer?30How to use waitForFileChooser() method in puppeteer?31How to use waitFor() method in puppeteer?32How to use waitForTimeout() method in puppeteer?33How to use waitForEvent() method in puppeteer?34How to use waitForFileChooser() method in puppeteer?35How to use waitFor() method in puppeteer?36How to use waitForTimeout() method in puppeteer?37How to use waitForEvent() method in puppeteer?38How to use waitForFileChooser() method in puppeteer?39How to use waitFor() method in puppeteer?40How to use waitForTimeout() method in puppeteer?41How to use waitForEvent() method in puppeteer?42How to use waitForFileChooser() method in puppeteer?43How to use waitFor() method in puppeteer?44How to use waitForTimeout() method in puppeteer?45How to use waitForEvent() method in puppeteer?46How to use waitForFileChooser() method in puppeteer?

Using AI Code Generation

1const puppeteer = require('puppeteer');2const { makePredicateString } = require('puppeteer/lib/JSHandle');3const predicate = (a, b) => a === b;4const predicateString = makePredicateString(predicate);5console.log(predicateString);6const puppeteer = require('puppeteer');7const { makePredicateString } = require('puppeteer/lib/JSHandle');8const predicate = (a, b) => a === b;9const predicateString = makePredicateString(predicate);10console.log(predicateString);11const puppeteer = require('puppeteer');12const { makePredicateString } = require('puppeteer/lib/JSHandle');13const predicate = (a, b) => a === b;14const predicateString = makePredicateString(predicate);15console.log(predicateString);16const puppeteer = require('puppeteer');17const { makePredicateString } = require('puppeteer/lib/JSHandle');18const predicate = (a, b) => a === b;19const predicateString = makePredicateString(predicate);20console.log(predicateString);21const puppeteer = require('puppeteer');22const { makePredicateString } = require('puppeteer/lib/JSHandle');23const predicate = (a, b) => a === b;24const predicateString = makePredicateString(predicate);25console.log(predicateString);26const puppeteer = require('puppeteer');27const { makePredicateString } = require('puppeteer/lib/JSHandle');28const predicate = (a, b) => a === b;29const predicateString = makePredicateString(predicate);30console.log(predicateString);

Using AI Code Generation

1const puppeteer = require('puppeteer');2const makePredicateString = (predicate) => {3    let predicateString = `(${predicate.toString()})()`;4    return predicateString;5}6const waitForPageLoad = async (page, timeout = 30000) => {7    const predicateString = makePredicateString(() => {8        return document.readyState === 'complete';9    });10    await page.waitForFunction(predicateString, { timeout });11};12(async () => {13    const browser = await puppeteer.launch({ headless: false });14    const page = await browser.newPage();15    await waitForPageLoad(page);16    await page.screenshot({ path: 'screenshot.png' });17    await browser.close();18})();19const puppeteer = require('puppeteer');20(async () => {21    const browser = await puppeteer.launch({ headless: false });22    const page = await browser.newPage();23    await page.waitForNavigation();24    await page.screenshot({ path: 'screenshot.png' });25    await browser.close();26})();27const puppeteer = require('puppeteer');28(async () => {29    const browser = await puppeteer.launch({ headless: false });30    const page = await browser.newPage();31    await page.waitForSelector('input[name="q"]');32    await page.screenshot({ path: 'screenshot.png' });33    await browser.close();34})();35const puppeteer = require('puppeteer');36(async () => {37    const browser = await puppeteer.launch({ headless: false });38    const page = await browser.newPage();39    await page.screenshot({ path: 'screenshot.png' });

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