1.3 KiB
1.3 KiB
speed button quiz answers
counter that keeps track of how many times button "A" has been pressed #LED #screen #variables #docs #input
This is the answer key for the speed button quiz.
1. What is a variable?
A variable that is available throughout your main function.
2. If the rectangle below represents the BBC micro:bit, shade the area that shows the value of the variable count.
let count = 0
3. If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed after two button presses on Button A. Explain why that particular area is shaded.
let count_ = 0
input.onButtonPressed(Button.A, () => {
count_ = count_ + 1
basic.showNumber(count_, 100)
})
After two button presses, count will be equal to 2.
5. If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed after five button presses on Button A. Explain why that particular area is shaded.
count_ = 0
input.onButtonPressed(Button.A, () => {
count_ = count_ + 1
basic.showNumber(count_, 100)
})
After five button presses, count will be equal to 5.