How to remove all tags inside a tag?

Question

css

Good afternoon.
Let's say there is a line: How to remove all tags inside h2, while leaving all the text? There can be several p tags, one, two, three... And there can be several hundred thousand such lines, so a mass solution is needed. I would be very grateful for an answer.
<h2><p>Текст1</p><p>Текст2</p></h2>

Answer 1

Regulators are not needed here.
This is done with textContent or innerText (depending on the task)