Puppeteer: Get text content / inner HTML of an element

Problem:

You want to use puppeteer to automate testing a webpage. You need to get either the text or the inner HTML of some element, e.g. of

<div id="mydiv">
</div>

on the page.

Solution:

# Get inner text
const innerText = await page.evaluate(() => document.querySelector('#mydiv').innerText);

# Get inner HTML
const innerHTML = await page.evaluate(() => document.querySelector('#mydiv').innerHTML);

Note that .innerText includes the text of sub-elements. You can use the complete DOM API inside page.evaluate(...). You can use any CSS selector as an argument for document.querySelector(...).