The video tutorial explains how to select and manipulate HTML elements using JavaScript. It covers the use of querySelector for element selection, and the differences between textContent, innerHTML, and outerHTML. The tutorial demonstrates how to update these properties and the implications of each method. It emphasizes the importance of understanding these differences for effective DOM manipulation. The video concludes with practical exercises to reinforce the concepts learned.

What method is used to select an HTML element by its class name?

• getElementsByTagName

• getElementById

• querySelector

• getElementsByClassName

Which property would you use to get the plain text content of an element?

• innerText

• textContent

• outerHTML

• innerHTML

What happens when you update the outerHTML of an element?

• The element's style is modified

• The element's ID is changed

• The element and its children are replaced

• Only the text content is changed

How does innerHTML differ from textContent?

• textContent includes HTML tags, innerHTML does not

• Both include HTML tags

• innerHTML includes HTML tags, textContent does not

• Neither includes HTML tags

What is a potential consequence of using outerHTML to update an element?

• The element's class is preserved

• The element's ID is preserved

• The element is removed from the DOM

• The element's children are preserved

Which property allows you to include HTML tags in the content?

• outerText

• innerHTML

• innerText

• textContent

What is the first step in manipulating an HTML element?

• Log the element

• Change the element's style

• Select the element

• Update the text content