DOM Control

Selecting

• Can put any selector in string for jsss

document.getElementById().getElementByTagname("input")
document.querySelector('.class')//return first
document.querySelectorAll('.class')//return NodeList(not array so no forEach?)

Modifying Elements

Can retrieve or set any attribute

document.getElementById("myname").type="radio"
document.getElementById("myname").value="Jorge"
elem.style.display = 'none';

Creating Elements

const container = document.createElement("div");
container.setAttribute("id", containerId);
document.body.appendChild(container);

Deleting Elements

const container = document.getElementById(containerId);
if (container === null) return;
container.parentNode.removeChild(container);

Other DOM Stuff

URL

window.location.href //full url
window.location.reload()

Scrolling

window.scrollBy(x-coord, y-coord);
window.scrollBy(options)

Options is a dict of

• top i,e y-coord

• left i.e x-coord

• behavior = smooth| instant| auto

Get Forms

document.forms
document.forms.myform
document.theform([name of form])

JQuery

$( '#header' ); // select the element with an ID of 'header'
$( 'li' );      // select all list items on the page
$( 'ul li' );   // select list items that are in unordered lists
$( '.person' ); // select all elements with a class of 'person'