JavaScript-functions

Question 1

What is a function in JavaScript?

Answer 1

a set of statements that performs a task or calculates a value

Question 2

Describe the parts of a function definition.

Answer 2

a set of outputs, and a rule that relates the elements of the set of inputs to the elements

Question 3

Describe the parts of a function call.

Answer 3

function name, argument list, and a semicolon

Question 4

When comparing them side-by-side, what are the differences between a function call and a function definition?

Answer 4

function call runs the code and function definition defines the function

Question 5

What is the difference between a parameter and an argument?

Answer 5

Parameter is variable in the declaration of function.

Argument is the actual value of this variable that gets passed to function.

Question 6

Why are function parameters useful?

Answer 6

Parameters are the names of the information that we want to use in a function or procedure

Question 7

What two effects does a return statement have on the behavior of a function?

Answer 7

Causes the function to produce a value we can use in our program.
Prevents any more code in the function’s code block from being run.