Computer Science Principles Unit 3 Review

Computer Science Principles Unit 3 Review

Intro to app design, debugging, and user testing

Investigating & Reflecting

• potential users are interviewed

• focus is on what user needs/wants

Multiple Choice

What will the "width" of the "leftButton" be when the program ends?

• 100

• 500

• 1000

Multiple Choice

If the user does NOT click the button, what will the width of the leftButton?

• 1000

• 100

• 500

Multiple Choice

If the user click "leftButton" once, what will be displyed in the console?

• Australia, Germany, India

• Australia, India

• Germany

• Australia, India, Germany

Fill in the Blanks

If the user clicks 3 times, what will print?

Fill in the Blanks

In

commands run in the order they are written

Fill in the Blanks

In

some commands run in response to user interactions or other events

Console Logs

• display specifically what is in ""

• can also display the value without ""

Multiple Select

Programmers use comments to:

• debug issues in code

• document how code was written for other programmers to use

• decide which components are important to use

Multiple Choice

What is the purpose of an onEvent?

• triggers code to run after user interacts with screen

• always sets properties for the screen

• never shows anything to the user

Multiple Select

What is important in syntax?

• parentheses

• spelling

• quotation marks

• how fast you type it