js get element id code example

Example 1: javascript get element width

var width = document.getElementById('myID').offsetWidth;//includes margin,border,padding
var height = document.getElementById('myID'). offsetHeight;//includes margin,border,padding

Example 2: javascript get element by id

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

Example 3: get element by id in javascript

document.getElementById("YourElementId");

Example 4: js how to find element using id

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

Example 5: javascript change element id

var element = document.getElementById("oldID");
element.id = "newID";

Example 6: get id of element javascript

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