What's the difference between document.getElementsByTagName('tag') and document.querySelector('tag')?

getElementsByTagName returns a live NodeList, while querySelector returns the first matching element or null.

Both return the same thing: all elements with the specified tag name.

getElementsByTagName is for older browsers, and querySelector is for modern browsers.

getElementsByTagName returns an array, and querySelector returns an object.

Based on the code snippet on the left, complete the code, by clicking on any of the choices below.

headingElement.innerText = product.name ;

headingElementinnerText = product.name ;

headingElement.innerText == product.name ;

headingElement.inneText = product.name ;

You're building a simple image gallery with a button to display the next image. There's a button with the ID "nextImageButton" and an image element with the class name "currentImage". Clicking the button should change the source of the image element to display the next image in the gallery. The code is to your left: Examine the code and identify the missing selector to target the image element with the class "currentImage".

querySelector(".currentImage");

You're creating a single-page application. You want to display a welcome message to the user only once after the entire page (including images and external resources) has finished loading. What event listener can you use to complete the code?

window.addEventListener("load", displayWelcomeMessage);

window.addEventListener("loaded", displayWelcomeMessage);

window.addEventListener("loader", displayWelcomeMessage);

window.addEventListner("load", displayWelcomeMessage);

ITS Chapter 4

Passage

•

Computers

•

University

•

Practice Problem

•

Medium

Thapelo Sibanda

Used 1+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property checks if the current window is closed?

c) window.hidden

b) window.closed

b) window.closing

a) window.opened

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you access the browser's debugging console through the window object?

window.inspect

window.debug

window.console

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which property represents the entire HTML document structure as a tree?

element

structure

document

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The window.self property refers to a different window than the current window.

true

false

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to an HTML document when loaded in a web browser?

It gets displayed directly on the screen.

It becomes a collection of text strings.

It becomes a document object

It gets converted into a different file format.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the root node of the Document Object Model

The document object

The <html> tag

The <head> tag

The <body> tag

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method is used to attach an event listener to a DOM element to listen for user interactions?

bindEvent

addEventListener

attachEvent

listenEvent

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ITS Chapter 4

25 questions

What property checks if the current window is closed?

How do you access the browser's debugging console through the window object?

Which property represents the entire HTML document structure as a tree?

The window.self property refers to a different window than the current window.

What happens to an HTML document when loaded in a web browser?

What is the root node of the Document Object Model

What method is used to attach an event listener to a DOM element to listen for user interactions?

Which property of the document object allows you to access and modify the content within the <body> tags of the HTML document?

The document.createElement() method creates a new element node but doesn't automatically add it to the existing DOM structure.

The "document.getElementById('idValue')" code, returns the element with the specified ID attribute value

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