Modern JavaScript from the Beginning - Second Edition - Traversing the DOM - Elements

This video tutorial explores the relationships between DOM nodes, focusing on element nodes. It explains how to identify parent, child, and sibling elements and demonstrates how to traverse the DOM using properties like parentElement, firstElementChild, and nextElementSibling. The tutorial also covers accessing and modifying elements' text and styles, providing practical examples in JavaScript.

What is a parent node in the DOM?

• A node that is at the top of the DOM tree

• A node that has no children

• A node that is a child of another node

• A node that contains other nodes within it

Which property would you use to access the first child element of a parent node?

• childNodes

• children

• firstChild

• firstElementChild

How can you select a DOM element with a specific class using JavaScript?

• document.getElementsByTagName()

• document.querySelector()

• document.getElementById()

• document.createElement()

What will the 'children' property return when used on a parent element?

• A NodeList of all nodes

• An HTMLCollection of child elements

• An array of all child nodes

• A single child element

Which property allows you to change the text content of a DOM element?

• nodeValue

• innerHTML

• textContent

• outerHTML

How can you change the style of a DOM element using JavaScript?

• element.style.propertyName

• element.changeStyle()

• element.style.setAttribute()

• element.setStyle()

Which property would you use to access the parent element of a given child element?

• ancestorNode

• rootElement

• parentNode

• parentElement

What does the 'nextElementSibling' property return?

• The first child element node

• The previous sibling element node

• The next sibling element node

• The next sibling node of any type

How can you select the second child element with a specific class using CSS selectors in JavaScript?

• document.querySelector('.class:nth-last-of-type(2)')

• document.querySelector('.class:nth-last-child(2)')

• document.querySelector('.class:nth-of-type(2)')

• document.querySelector('.class:nth-child(2)')

Which property would you use to access the previous sibling element of a given element?

• previousSibling

• previousElementSibling

• lastElementSibling

• firstElementSibling