test

In the following program, when will the function draw be called?

• Once, inside of start
• Never
• Every 20 milliseconds
• Every 20 seconds

Which statement will call a function animate every 50 milliseconds?

• setTimer(animate, 50);
• setTimer(animate(), 50);
• for(var i = 0; i < 50; i++){
  animate();
  }
• timer.animate(50);

To add a rectangle named rect to the screen, which command do you need to give?

• add(rect);
• new(rect);
• put(rect);
• rect();

What symbol is used to negate a boolean in JavaScript?

• NOT
• !
• ~
• &

After the following code runs, what is the value of b?

var a = true; var b = a || false;

• true
• false
• "b"
• "a || false"

A store has 20 apples in inventory.How can you store this information in a JavaScript variable?

• var numApples == 20;
• 20 = numApples;
• var numApples = 20;
• var num apples = 20;

We want to print “CodeHS is the best” exactly 25 times.What control structure should we use?

• break statement
• for loop
• while loop
• if statement

We want to flip a coin until we get 3 heads in a row.What kind of loop should we use?

• for loop
• while loop
• loop and a half
• infinite loop

Why do we write functions?

• Make our code easier to understand 
• Avoid writing repeated code
• Make our code reusable
• All of these

What statement can we use inside of a loop to end it?

• println
• break
• stop
• else