DOM.js

//Document object modelling codes

document.getElementsbyTagName("li");
document.getElementsbyLastName("btn");
document.getElementbyId("title");
document.querySelector("h1");

//Codes for separation of concern
document.querySelector("button").classList;
document.querySelector("button").classList.add("newclass");
document.querySelector("button").classList.remove("newclass");
document.querySelector("button").classList.toggle("newclass");


//Codes forText manipulation

document.getElementsbyId("title").innerHTML="Hello";
document.getElementsbyId("title").textContent="Bye";


//Codes for Elements manipulation
document.querySelector("a");
document.querySelector("a").attributes;
document.querySelector("a"). getAttributes("href");
document.querySelector("a").setAttributes("href","https://.......");