JAVASCRIPT CONCEPTS
Links
//GET ELEMENT BY ID (id cannot be repeated)
document.getElementById('textExtra').innerHTML //for HTML elements, divs, p,
document.getElementById('textExtra').value //for form fields
document.getElementById('textExtra').className //removes previous value
document.getElementById('textExtra').src //changes the source of image
document.getElementById('textExtra').href //changes the link
document.getElementById('textExtra').style.fontSize = 2rem //changes the style
document.getElementById('textExtra'). //
//TAG NAME
var par = document.getElementByTagName('p'); //gets all p elements
par[1].innerHTML;
par[1].style.fontFamily = "Verdana";
//Get some elements from a specific tag / id
var e document.getElementById('textExtra';
var ps = e.document.getElementByTagName('p');
//
classList.add("active");
classList.remove("active");
querySelector("#ourList");
querySelectorAll("#our-list li");