Id attribute html

Question

I have a problem with the Id tag pls help me.
I don't understand it.

Answer 1

Id is not a tag. It is an attribute which should be unique across the html. Id is used to access elements value like input fields or a tag value.

For example:

to get input fields value
-------

let name = document.getElementById('name').value;

to get tags value
----------

let tagValue = document.getElementById('tag').innerHTML;