JS

Question 1

What are arrays used for ?

Answer 1

Creating a list

Question 2

Describe array literal notation.

Answer 2

[]

Question 3

How are arrays different from “plain” objects?

Answer 3

Arrays have an order

Question 4

What number represents the first index of an array?

Answer 4

0

Question 5

What is the length property of an array?

Answer 5

counts how many interms are in array (array.lenght)

Question 6

How do you calculate the last index of an array?

Answer 6

array.length-1

Question 7

What is a function in JavaScript?

Answer 7

Functions packs a code for resuse through a program

Question 8

Describe the parts of a function definition.

Answer 8

function keyword ,then name, then (parameter), then {code block}

Question 9

Describe the parts of a function call.

Answer 9

writing a function name then ()

Question 10

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

Answer 10

function call is asking the function to run, while defining the function is constructing the function it’s self

Question 11

What is the difference between a parameter and an argument?

Answer 11

The parameter is used to pass an argument

Question 12

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

Answer 12

causes the function to produce a value and exits the function