App Programming Project Quiz

What is the purpose of decomposing a programming project?

• To break down the problem into smaller parts that are more manageable and easier to understand

• It is used to test your system at the end of the project

• To split the problem into two parts

• To make a hand-drawn design for the solution to the problem before you start writing code

Which one of the following success criteria would not be suitable?

• User screen must have a button to move to the next screen

• Must allow the user to input their name

• App must be easy to use

• App must have a score screen

Which of the following would define an event?

• A sequence of code that is executed when an application is opened

• When a sequence of code is executed more than once

• When an expression evaluates as true

• An action that triggers a sequence of code to be executed

Looking at the code below, what triggers the event?

• When the variable `startbutton` is initialised

• When an object named `startbutton` is clicked

• When the `Game` screen opens

• When any item on the `Game` screen is clicked

Looking at the code below, what happens after the `confirm_button` has been clicked?

• The user is prompted to enter text into the input box

• A data entry box will appear

• Nothing, as the variable `name` hasn’t been declared beforehand

• The text entered by the user into the input box is collected and linked to the `name` variable

There is an app that has two screens, `home_screen` and `game_screen`. On the home screen are two buttons. What sequence should the two events below be placed in?

• `home_button` event first, then `game_button` event

• `game_button` event first, then `home_button` event

• Both events can be placed in any order

• Only one event is needed

What will happen after the play_game_button is clicked?

• The game_screen will appear and wait for the play_game_button to be clicked before moving to the end_screen

• The game_screen will appear and will automatically move to the end_screen after five seconds

• The game_screen will appear and will automatically move to the end_screen after 50 seconds

• A countdown timer will appear before moving to the end_screen

What will be the value of the variable `conversion` when the code is executed if the `pounds_text_entry` contains the value 5?

• 5

• 2

• 10

• 20

What will happen when this code is executed?

• The app will set the screen to `game_screen`

• The `message_label` will display the message “Sorry, you are not old enough to play this game”

• Nothing

• The user enters their age

Which of the following options is a reason for using the `console.log()` function?

• It is used to write a message to a text label

• It is used to display a message in the console for debugging

• It is used to set the screen to a different view

• It is used to create a new variable