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JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Controlling Content (Add/Delete) / 048

JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Controlling Content (Add/Delete) / 048

Assessment

Interactive Video

•

Information Technology (IT), Architecture

•

University

•

Practice Problem

•

Hard

Created by

Wayground Content

FREE Resource

This lecture covers how to change content on a webpage using JavaScript. It explains the use of query selectors to target elements and the difference between inner text and inner HTML for content manipulation. The lecture also demonstrates updating multiple elements using forEach and advanced techniques for using inner HTML to add or overwrite content.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two main approaches to changing content on a web page discussed in the lecture?

Changing the text directly or modifying the CSS

Changing the text directly or modifying the HTML

Modifying the HTML or changing the JavaScript

Changing the CSS or modifying the JavaScript

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which JavaScript method is used to select a single element for editing?

document.getElementById

document.querySelector

document.querySelectorAll

document.getElementsByClassName

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property is used to change the text content of an element in JavaScript?

textContent

innerText

outerHTML

innerHTML

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using console.log in the examples provided?

To log errors in the JavaScript code

To change the content of the web page

To verify the selection and modification of elements

To update the CSS styles of elements

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you update multiple elements in a list using JavaScript?

Using a while loop

Using a for loop

Using forEach method

Using map method

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of the lecture, what is a practical use of modifying multiple elements?

Changing the URL of a hyperlink

Modifying the font size of a paragraph

Updating a list of products on an e-commerce site

Changing the background color of a page

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the advantage of using innerHTML over innerText?

innerHTML allows modifying CSS styles

innerHTML is faster than innerText

innerHTML is more secure than innerText

innerHTML allows adding or changing HTML structure

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