Assume you are Bob and that's the name stored in our form filling database.
Assume the following is the form to be filled in.
This JavaScript application will look for a label of "Name" and fill in the corresponding form. See the code with Control-U or whatever your "view (HTML) source" is. It's probably really hard to do on a mobile device.
Lesson one is to see the "labele" by putting your breakpoint in the debugger on the line after "const labele = ..." Then refresh the page, see the breakpoint stop there, and see things like the "innerHTML" property of the label.