Unit 3 Introduction to App Design

Where do console.log statements print?

• At the top of the app screen

• In the center of the app screen

• At the bottom of the app screen

• Not on the app screen at all

Consider this app lab code. Which statement(s) will cause an error?

• 1

• 2

• 3

• 4

What happens when this code runs?

• Prints "starting" to the console, makes the button blue, and prints "done" to the console.

• Makes the button blue and prints "done" to the console.

• Prints "starting" on the button, makes the button blue, and prints "done" on the button.

• Nothing happens unless the button is clicked, in which case it makes the button blue and prints "done" in the console.

Which onEvent contains the code to make the background magenta?

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Which onEvent contains the code to make the star green?

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Which onEvent contains the code to make the label say "Hi there!"?

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Which of these best describes where the dot will appear on the screen?

• Somewhere in the center of the screen.

• Somewhere in the top left quadrant.

• Somewhere in the top right quadrant.

• Somewhere in the bottom left quadrant.

• Somewhere in the bottom right quadrant.

Which is the best description of what will happen each time the resize button is clicked?

• The button will grow larger.

• The button will shrink smaller.

• The button will either grow or shrink.

• The button will shrink and then grow.

• The button will grow and then shrink.

Which line contains a comment? (Give one correct line number)

Which line of code causes a sound to play only when a button is clicked? (Give one correct line number)