Intro to Programming - Functions

What is a JavaScript function?

• A data type

• A block of code that performs a specific task

• A variable

• A conditional statement

What is the purpose of parameters in a JavaScript function?

• To store global variables

• To specify the data type of a variable

• To provide input values for the function

• To restrict access to the function

Using functions allows coders to...

• fix mistakes more easily

• spend less time coding

• better organize their code

• all of the above

What does “calling” a function mean?

• Naming and creating the function for the first time

• Using your function in your code by writing its name and defining the values of the parameters

• Using the same name for all of the function you create

• Writing the name of the function inside your draw loop

After creating a new function in your code what do you have to do to see the function run?

• Add a draw sprites code into the function

• Call the function in your code

• Put the function at the bottom of the code

• Add a variable in the function

Which of the following is true regarding naming functions? 

• Function names can be reused multiple times
• A function name should be as descriptive as possible to indicate what the function does.
• Function names should be organized alphabetically
• The function name should begin with a number that indicates the order in which it should be executed.

Why are parameters useful when programming?

• Parameters change the order of operations within a function.

• Parameters help teams of programmers because they define the problems they are trying to solve.

• Parameters allow for more flexible, generalized behaviors in functions.

• Parameters determine the number of times a function will run.

What is a good name for the function?

• score

• totalPoints

• backgroundChanges

• angryBackground

Given the following code, which is considered the parameters of the function

function myFunction(a, b, c) {

var x = a + b + c;

}

• x

• a

• b

• c

The values that are passed on to the function when it is called.

• Function

• Identifier

• Blocks

• Argument