EndofT3ComSciY8Test

How do you introduce a pause in a micro:bit program using Javascript?

• basic.pause ( milliseconds ) ;

• basic.pause ( milliseconds )

• basic.wait ( milliseconds ) ;

• basic.wait ( milliseconds )

What is the syntax error in this display LED code?

basic.showLeds(

. # # # .

# # # # #

# # # # #

. # # # .

. . # . .

)

• It is missing enough hashtags ( # )

• It is missing the quote marks ' '

• The function should be Basic.ShowLEDs

• It should use braces { }

How would you call (use) the basic.forever function in Javascript microbit to repeat the function 'catface'?

Why is it important to organise code into functions when programming?

• Functions are faster code

• It saves code because functions can be reused

• Coding cannot be done with functions

Why is the forever function normally put at the end of the page of code for a microbit?

• 1. Placing it at the end ensures that the microbit has time to warm up and properly initialize before entering into a continuous loop.

• Because if you put it at the beginning, the microbit gets confused and thinks the code should only run once, defeating the purpose of a loop

• The forever function will repeat forever, unless broken, so it is reasonable to do this last

• It's a tradition started by early microbit developers to pay homage to the timeless nature of looping functions, much like the closing credits of a movie.

How do you create a variable called 'bigNumber' and store the number 5 in it using Javascript?

• integer bigNumber = 5;

• const bigNumber = 5;

• let bigNumber = 5;

• bigNumber = 5;

In coding, why is it beneficial to use variables?

A number is a type of data in javascript (which counts as either float or integer). Can you name one other type of variable used in Javascript programming?

Change a variable called num (that already exists) to be equal to 4

• num = 4 ;

• let num = 4 ;

• set num = 4 ;

• change num = 4 ;

Which of these can be used to respond to a button press on the microbit?

• input.onButtonPressed

• basis.showLEDs

• basic.showNumber

• basic.showString