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How to use evaluateExpressionHandleAndWaitForSignals method in Playwright Internal

Best JavaScript code snippet using playwright-internal

frames.js

Source:frames.js

...511  }512  _utilityContext() {513    return this._context('utility');514  }515  async evaluateExpressionHandleAndWaitForSignals(expression, isFunction, arg, world = 'main') {516    const context = await this._context(world);517    const handle = await context.evaluateExpressionHandleAndWaitForSignals(expression, isFunction, arg);518    if (world === 'main') await this._page._doSlowMo();519    return handle;520  }521  async evaluateExpression(expression, isFunction, arg, world = 'main') {522    const context = await this._context(world);523    const value = await context.evaluateExpression(expression, isFunction, arg);524    if (world === 'main') await this._page._doSlowMo();525    return value;526  }527  async evaluateExpressionAndWaitForSignals(expression, isFunction, arg, world = 'main') {528    const context = await this._context(world);529    const value = await context.evaluateExpressionAndWaitForSignals(expression, isFunction, arg);530    if (world === 'main') await this._page._doSlowMo();531    return value;...

frameDispatcher.js

Source:frameDispatcher.js

...97  async evaluateExpressionHandle(params, metadata) {98    return {99      handle: _elementHandlerDispatcher.ElementHandleDispatcher.fromJSHandle(100        this._scope,101        await this._frame.evaluateExpressionHandleAndWaitForSignals(102          params.expression,103          params.isFunction,104          (0, _jsHandleDispatcher.parseArgument)(params.arg),105          'main'106        )107      )108    }109  }110  async waitForSelector(params, metadata) {111    return {112      element: _elementHandlerDispatcher.ElementHandleDispatcher.fromNullable(113        this._scope,114        await this._frame.waitForSelector(metadata, params.selector, params)115      )...

Using AI Code Generation

1const { chromium } = require('playwright');2const { evaluateExpressionHandleAndWaitForSignals } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3(async () => {4  const browser = await chromium.launch({ headless: false });5  const page = await browser.newPage();6  const input = await page.$('input[name="q"]');7  await input.type('Hello World');8  await page.evaluate(() => {9    return evaluateExpressionHandleAndWaitForSignals('document.querySelector("input").value');10  });11  await browser.close();12})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.waitForSelector('text=Hello, world!');6  const handle = await page.evaluateExpressionHandleAndWaitForSignals('document.querySelector("h1")', {7  });8  console.log(handle.asElement().innerText());9  await browser.close();10})();11    at async Frame._evaluateExpressionHandleAndWaitForSignals (/home/ashish/Downloads/playwright-experiments/node_modules/playwright/lib/client/frames.js:421:22)12    at async Frame.evaluateExpressionHandleAndWaitForSignals (/home/ashish/Downloads/playwright-experiments/node_modules/playwright/lib/client/frames.js:414:16)13    at async Object.<anonymous> (/home/ashish/Downloads/playwright-experiments/test.js:12:21)

Using AI Code Generation

1const playwright = require('playwright');2const { evaluateExpressionHandleAndWaitForSignals } = require('playwright/lib/server/browserContext');3const { Page } = require('playwright/lib/server/page');4(async () => {5  const browser = await playwright.chromium.launch();6  const context = await browser.newContext();7  const page = await context.newPage();8  const expression = 'document.querySelector("div").id';9  const waitForSignals = true;10  const handle = await evaluateExpressionHandleAndWaitForSignals.call(page, expression, waitForSignals);11  console.log(await handle.jsonValue());12  await browser.close();13})()

Using AI Code Generation

1const { evaluateExpressionHandleAndWaitForSignals } = require('playwright-core/lib/server/frames');2const { getTestState } = require('playwright-core/lib/server/test');3const { Page } = require('playwright-core/lib/server/page');4const { Frame } = require('playwright-core/lib/server/frames');5const { JSHandle } = require('playwright-core/lib/server/jsHandle');6async function main() {7  const page = await browser.newPage();8  const frame = page.mainFrame();9  const jsHandle = await evaluateExpressionHandleAndWaitForSignals(10    frame, 'document.querySelector("body")', false, false, false, false, undefined);11  console.log(jsHandle);12  await page.close();13}14main();15module.exports = {16  use: {17    viewport: { width: 1280, height: 720 },18  },19    ['junit', { outputFile: 'test-results.xml' }]20  globalSetup: require.resolve('./globalSetup.js'),21  globalTeardown: require.resolve('./globalTeardown.js'),22    {23      use: {24        launchOptions: {25        },26      },27    },28};29const playwright = require('playwright-core');30module.exports = async () => {31  const browserServer = await playwright.chromium.launchServer({32  });33  const wsEndpoint = browserServer.wsEndpoint();34  process.env.BROWSER_WS_ENDPOINT = wsEndpoint;35};36const playwright = require('playwright-core');37module.exports = async () => {38  const wsEndpoint = process.env.BROWSER_WS_ENDPOINT;39  const browserServer = await playwright.chromium.connect({40  });

Using AI Code Generation

1const { evaluateExpressionHandleAndWaitForSignals } = require('playwright');2const { Page } = require('playwright/lib/server/page');3const { JSHandle } = require('playwright/lib/server/jsHandle');4async function main() {5  const page = new Page(null, null, null, null, null);6  const jsHandle = await evaluateExpressionHandleAndWaitForSignals(7  );8  console.log(jsHandle);9}10main();11const { evaluateExpressionHandleAndWaitForSignals } = require('playwright');12const { Page } = require('playwright/lib/server/page');13const { JSHandle } = require('playwright/lib/server/jsHandle');14async function main() {15  const page = new Page(null, null, null, null, null);16  const jsHandle = await evaluateExpressionHandleAndWaitForSignals(17  );18  console.log(jsHandle instanceof JSHandle);19}20main();21const { evaluateExpressionHandleAndWaitForSignals } = require('playwright');22const { Page } = require('playwright/lib/server/page');23const { JSHandle } = require('playwright/lib/server/jsHandle');24async function main() {25  const page = new Page(null, null, null, null, null);26  const jsHandle = await evaluateExpressionHandleAndWaitForSignals(27  );28  console.log(jsHandle.asElement());29}30main();31const { evaluateExpressionHandleAndWaitForSignals } = require('playwright');32const { Page } = require('playwright/lib/server/page');33const { JSHandle } = require('playwright/lib/server/jsHandle

Using AI Code Generation

1const {evaluateExpressionHandleAndWaitForSignals} = require('playwright/lib/server/supplements/har/harTracer');2const { getHarTracer } = require('playwright/lib/server/supplements/har/harTracer');3const { getHarWriter } = require('playwright/lib/server/supplements/har/harWriter');4const { getHarPage } = require('playwright/lib/server/supplements/har/harPage');5const { getHarNetwork } = require('playwright/lib/server/supplements/har/harNetwork');6const { getHarRequest } = require('playwright/lib/server/supplements/har/harRequest');7const { getHarResponse } = require('playwright/lib/server/supplements/har/harResponse');8const { getHarEntry } = require('playwright/lib/server/supplements/har/harEntry');9const { getHarLog } = require('playwright/lib/server/supplements/har/harLog');10const { getHarBrowser } = require('playwright/lib/server/supplements/har/harBrowser');11const { getHarBrowserContext } = require('playwright/lib/server/supplements/har/harBrowserContext');12const { getHarTracer } = require('playwright/lib/server/supplements/har/harTracer');13const { getHarWriter } = require('playwright/lib/server/supplements/har/harWriter');14const { getHarPage } = require('playwright/lib/server/supplements/har/harPage');15const { getHarNetwork } = require('playwright/lib/server/supplements/har/harNetwork');16const { getHarRequest } = require('playwright/lib/server/supplements/har/harRequest');17const { getHarResponse } = require('playwright/lib/server/supplements/har/harResponse');18const { getHarEntry } = require('playwright/lib/server/supplements/har/harEntry');19const { getHarLog } = require('playwright/lib/server/supplements/har/harLog');20const { getHarBrowser } = require('playwright/lib/server/supplements/har/harBrowser');21const { getHarBrowserContext } = require('playwright/lib/server/supplements/har/harBrowserContext');22const { getHarTracer } = require('playwright/lib/server/supplements/har/harTracer

Using AI Code Generation

1const { evaluateExpressionHandleAndWaitForSignals } = require('@playwright/test/lib/server/frames');2const { createPageInNewContext } = require('@playwright/test/lib/server/browserContext');3const { createTestState } = require('@playwright/test/lib/test/state');4const { toImpl } = require('@playwright/test/lib/server/converters');5const { test } = require('@playwright/test');6test.describe('test', () => {7  test('evaluateExpressionHandleAndWaitForSignals', async ({ page }) => {8    const testState = createTestState();9    const context = await createPageInNewContext(page, testState);10    const frame = toImpl(await context.newPage()).mainFrame();11    const handle = await evaluateExpressionHandleAndWaitForSignals(frame, 'window', true);12    console.log(await handle.evaluate(e => e));13  });14});

Using AI Code Generation

1const { evaluateExpressionHandleAndWaitForSignals } = require('playwright-core/lib/server/frames');2const { helper } = require('playwright-core/lib/server/helper');3(async () => {4  const frame = await browser.newPage().mainFrame();5  const { result, exceptionDetails } = await evaluateExpressionHandleAndWaitForSignals(6    'document.querySelector("div")',7    'document.querySelector("div").addEventListener("click", () => {})',8  );9  if (exceptionDetails) {10    console.error(exceptionDetails);11  } else {12    console.log(await helper.evaluationResultToString(result));13  }14})();

Using AI Code Generation

1const { evaluateExpressionHandleAndWaitForSignals } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');2const expression = 'document.querySelector("button")';3const waitForSignals = true;4evaluateExpressionHandleAndWaitForSignals(expression, waitForSignals);5const { evaluateExpressionAndWaitForSignals } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');6const expression = 'document.querySelector("button")';7const waitForSignals = true;8evaluateExpressionAndWaitForSignals(expression, waitForSignals);9const { evaluateExpressionHandleAndWaitForSignals } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');10const expression = 'document.querySelector("button")';11const waitForSignals = true;12evaluateExpressionHandleAndWaitForSignals(expression, waitForSignals);

Using AI Code Generation

1const { Page, JSHandle } = require('playwright');2const page = new Page();3const handle = new JSHandle();4const result = await page.evaluateExpressionHandleAndWaitForSignals('window', false, handle, { timeout: 1000 });5console.log(result);6const { Page } = require('playwright');7const page = new Page();8const result = await page.evaluateExpressionAndWaitForSignals('2 + 3', true, { timeout: 1000 });9console.log(result);

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