JavaScript Quiz 2

In coding, a variable is used to:

• Store a value in memory

• Draw shapes

• Store a value that does not change

• Display the result of a math equation

What is a list of steps you can follow to finish a task?

• Program

• Code

• Bug

• Algorithm

What is an error in a program that prevents a program from running as expected?

• Program

• Code

• Bug

• Algorithm

What are statements that are only run if something is true?

• Program

• Conditionals

• Bug

• Algorithm

When drawing in JavaScript, the coordinates for the top left of the screen are ___.

• (0, 400)

• (0, 0)

• (400, 0)

• (400, 400)

The command: ellipse(200,100, 20, 20) will draw:

• a rectangle whose center is is at (200,100) and is 20 pixels wide and 20 pixels tall

• a circle whose center is at (20,20) and 200 pixels wide and 100 pixels tall

• a circle whose center is at (200, 100) and is 20 pixels wide by 20 pixels tall

• a rectangle whose center is at (20, 20) and is 200 pixels wide by 100 pixels tall

The code below will:

• Draw a circle

• Draw many circles according to the mouse position

• Draw many circles diagonally across the screen

• Draw many circles in the center of the screen

The code background(rgb(100,0,0)) will color the background in:

• red

• green

• blue

• black

After running the code to the right, what will be displayed?

• x

• 3

• 15

• Nothing will be displayed

Which of the following represents a comment in JavaScript?

• <!---------->

• //

• /

• #