[BUG] xpath css selector all dont work

[wanghaisheng]

Context:

• Playwright Version: [what Playwright version do you use?]
• Operating System: [e.g. Windows, Linux or Mac]
• Node.js version: [e.g. 12.22, 14.6]
• Browser: [e.g. All, Chromium, Firefox, WebKit]
• Extra: [any specific details about your environment]

Code Snippet

Help us help you! Put down a short code snippet that illustrates your bug and
that we can run and debug locally. For example:

const {chromium, webkit, firefox} = require('playwright');

(async () => {
  const browser = await chromium.launch();
  const context = await browser.newContext();
  const page = await context.newPage();
  
  // Please include a snippet of HTML that shows an example of the content
  // you are testing.
  await page.setContent(`
    <div>
      …
    </div>
  `);
  // Alternatively, if you are testing a public application, include the URL:
  // await page.goto('https://example.com/')
  
  await page.locator(…);
})();

Describe the bug

Add any other details about the problem here.

full code here

    const page = await browser.newPage();


    await page.goto('https://www.merchantgenius.io/')
    // console.log(await page.content())
    const yuefen1 =  await page.locator('xpath=//html/body/main/div/div[2]/a')
    console.log('1-',await yuefen1.length)
    const yuefen2 =  await page.locator('div.container > a')
    console.log('2-',await yuefen2.length)

it give me underfined,am i missing something

[ltsuda]

page.locator is not async, so there's no need await. Also, to get the number of elements found using the Locator API, use the .count() method. Any method of locators is async, that's why we need await on the .count() method.

https://playwright.dev/docs/locators
https://playwright.dev/docs/api/class-locator#locator-count

    await page.goto("https://www.merchantgenius.io/")
    // console.log(await page.content())
    const yuefen1 = page.locator("xpath=//html/body/main/div/div[2]/a")
    console.log("1-", await yuefen1.count())
    const yuefen2 = page.locator("div.container > a")
    console.log("2-", await yuefen2.count())

❯ npx playwright test

Running 1 test using 1 worker
[chromium] › example.spec.js:3:1 › basic test
1- 523
2- 523

  1 passed (5s)

[dgozman]

Thank you @ltsuda!