js get elements with an id code example

Example 1: js how to find element using id

element = document.querySelector("#id");

Example 2: get id of element javascript

var element = document.getElementsByTagName("div")[0];
var id = element.id;

Example 3: js get id value

var element = document.getElementById("YourElementId");
var value_element = document.getElementById("YourElementId").value;