HTML CSS and JavaScript for Beginners - A Web Design Course - How to Select Dynamic Elements from the Page Using QuerySe

HTML CSS and JavaScript for Beginners - A Web Design Course - How to Select Dynamic Elements from the Page Using QuerySe

Assessment

Interactive Video

•

Information Technology (IT), Architecture

•

University

•

Practice Problem

•

Hard

Created by

Wayground Content

FREE Resource

The video tutorial covers creating and managing lists in HTML using JavaScript. It explains how to apply conditions to limit the number of items in a list, use query selectors to manipulate DOM elements, and dynamically update lists with event listeners. The tutorial also demonstrates appending items to lists and handling callbacks, as well as methods to limit the number of list items using conditions and JavaScript properties.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using the child element count property in JavaScript?

To add new elements to a list

To remove elements from a list

To sort elements in a list

To count the number of child elements in a list

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does querySelectorAll differ from querySelector?

querySelectorAll returns a live node list

querySelector returns all matching elements

querySelector can only select input fields

querySelectorAll returns a static node list

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the querySelector method return?

A static node list

A live node list

The first matching element

A list of all matching elements

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of the button in the HTML setup?

To add items to the unordered list

To change the list's background color

To delete items from the list

To sort the list items

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you track the number of times a button is clicked?

By using a form submission

By using a timer

By using a global variable and incrementing it

By using a CSS counter

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is used to add a new list item to the unordered list?

replaceChild

removeChild

appendChild

createElement

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between append and appendChild?

appendChild returns a callback, append does not

append returns a callback, appendChild does not

Neither have callbacks

Both have callbacks

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