javascript-getelement

Question

what type of values given to getElementById() method

Answer 1

getElementById expects a string.

The following code:

var element = document.getElementById('myId');

finds the following element and assigns it to element

<div id="myId"></div>

Answer 2

a single DOM object, of a specialized class depending on the nature of the element identified by the given ID

Answer 3

just pass the id of any element like <input type="text" id="text" /> just use getElementById("text")