JAVASCRIPT

JS add id to element

.setAttribute("id", "id goes here")

add id to html element javascript

var myElement = document.getElmentByClassName('my-element')
var.setAttribute("id", "id_you_like");

js add id to element

//creates div then assigns a reference of that object to myElement variable
let myElement = document.createElement('div') 
//myElement.setAttribute("type here", "customName here")
myElement.setAttribute("class", "myClassName")
myElement.setAttribute("id", "myUniqueIDName")

set id to div element in Javascript

var divEle= document.createElement('div'); 
divEle.id='firstDivId';