Frontend Web Development Bootcamp - Build a Twitter Clone - Make Post Modal Work

This video tutorial covers adding JavaScript functionality to a model, including setting up event listeners for buttons to display and hide the model, managing opacity changes for interactive elements, and ensuring the model resets correctly. The tutorial provides a step-by-step guide to implementing these features, with a focus on using query selectors, event listeners, and CSS class manipulation.

What CSS property is used to hide the model initially?

• position: absolute

• opacity: 1

• visibility: visible

• display: none

Which method is used to select HTML elements in JavaScript?

• getElementById

• getElementsByTagName

• querySelector

• getElementsByClassName

What event type is used to display the model when the button is clicked?

• focus

• keydown

• click

• mouseover

What is the purpose of the X closing button in the model?

• To submit the form

• To hide the model and enable the page

• To refresh the page

• To open a new tab

Which method is used to remove a class from an element in JavaScript?

• deleteClass

• removeClass

• classList.delete

• classList.remove

What is the purpose of the changeOpacity function?

• To change text color

• To adjust the opacity of elements

• To change the background color

• To hide elements

Which event is used to detect when a key is pressed in the input field?

• keyup

• keydown

• input

• keypress

What happens to the opacity of elements when the input field is empty and loses focus?

• Opacity increases

• Opacity decreases

• Opacity remains the same

• Opacity becomes zero

Which event is used to detect when the input field loses focus?

• focus

• input

• blur

• change

What should happen to the input field when the model is closed and reopened?

• It should retain its value

• It should display an error

• It should be disabled

• It should be cleared