How do I use Playwright's waitForSelector method to check if an element is attached, visible, and stable?

Answer

Sure, you can use Playwright's waitForSelector method to check if an element is attached, visible, and stable. Here's how you do it:

First, import Playwright:

const { chromium } = require('@playwright/test');

Launch a new browser instance:

const browser = await chromium.launch();
const page = await browser.newPage();

Navigate to your desired URL:

await page.goto('https://ray.run');

Now, use the waitForSelector method:

const selector = 'your-element-selector';
try {
  await page.waitForSelector(selector, { state: 'visible', strict: true });
  console.log('The element is attached, visible, and stable.');
} catch (error) {
  console.log('The element did not satisfy all conditions within the timeout period.');
}

The state option set to "visible" makes Playwright wait for the element to have a non-empty bounding box and no visibility:hidden style. The strict option ensures that only elements that fully satisfy these conditions are considered.

This approach should work even when elements are part of collapsing parent elements. For more details and examples, refer to the official Playwright documentation.