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2 cards from this section. Quick, good the night before a test.
What is an event listener?
Think about user interactions in an application.
What is a callback function?
What happens when you click a button?
What is the primary function of an event listener?
Think about what happens after an event occurs.
True or False: Event listeners can only be used in web applications.
Consider different programming languages and platforms.
Design an event listener in JavaScript that changes the background color of a webpage when a button is clicked. Provide both the HTML and JavaScript.
Think about how to connect the button and the event action.
Write a small Python Tkinter application with a button that uses an event listener to print a message when clicked.
Remember to set up the main loop for the GUI.
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