Also, since v1.20 there’s the toHaveValue matcher that can verify an element’s value:
await expect(page.locator('input#my-input')).toHaveValue('1');
inputValue method has been added in Playwright v1.13.0
await page.inputValue('input#my-input');
Locator:
await page.locator('input#my-input').inputValue();
It returns input.value for the selected <input> or <textarea> element. Throws for non-input elements. Read more.
Meanwhile, if you want to assert the value you can use toHaveValue
const locator = page.locator('input#my-input');
await expect(locator).toHaveValue(/[0-9]/);