this.document.getelementbyid code example
Example 1: getelementbyid
document.getElementById("someid");
Example 2: js getelementbyid
document.getElementById("some_id");
Example 3: javascript get element by id
var myElement=document.getElementById("someElementID");
Example 4: document.getelementbyid() javascript
var x = document.getElementById("demo"); // Get the element with id="demo"
x.style.color = "red"; // Change the color of the element