To screenshot, make use of page.screenshot({ path: 'screenshot/screenshot.png' })
Full page screenshots
Full page screenshot is a screenshot of a full scrollable page, as if you had a very tall screen and the page could fit it entirely.
await page.screenshot({ path: 'screenshot.png', fullPage: true });
Element screenshots
You can also take screenshots of elements too:
await page.locator('.header').screenshot({ path: 'screenshot.png' });
An example
const { test } = require('@playwright/test');
test('Demo video', async ({ page }) => {
await page.goto('https://playwright.dev');
await page.screenshot({ path: 'screenshot.png' });
});