Modern Web Design with HTML5, CSS3, and JavaScript - Doing Even More with JavaScript Event Listeners

This video tutorial covers how to manipulate input fields using JavaScript. It explains how to select input elements, retrieve their values, and implement event listeners for focus, blur, and change events. The tutorial includes a project challenge to change the font color based on input focus and changes, demonstrating practical application of event handling and DOM manipulation.

What method is used to select an input element by its name in JavaScript?

• getElementsByClassName

• querySelector

• getElementById

• getElementsByTagName

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

• change

• click

• blur

• focus

What happens when the 'blur' event is triggered on an input field?

• A message is logged to the console

• The input field gains focus

• The input field is disabled

• The input field value is cleared

Which event listener is used to detect changes in the content of an input field?

• focus

• input

• blur

• change

What color does the text turn when the input field is focused?

• Blue

• Red

• Black

• Green

What is the purpose of the boolean flag in the font color challenge?

• To track if the input field is focused

• To determine if the input content has changed

• To disable the input field

• To reset the input field value

What happens to the text color if the input content is changed and then focus is lost?

• It remains unchanged

• It turns blue

• It turns black

• It turns red