title: Autofill HTML form field with number on page
body: <p>Is there a way using JS to autofill a HTML form field with a number pre-existing on the page, example below:</p>
  
  <p>So the '123456' number would populate in form field onload.</p>
  
  <p><a href="https://i.stack.imgur.com/lcsmo.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lcsmo.jpg" alt="enter image description here"></a></p>