Operators and Expressions

Question 1

What data type is returned by an arithmetic operation?

Answer 1

numeric value

Question 2

What is string concatenation?

Answer 2

process of joining together two or more strings to create one new string

Question 3

What purpose(s) does the + plus operator serve in JavaScript?

Answer 3

Adds one value to another (numeric). Concatenates two or more strings (string).

Question 4

What data type is returned by comparing two values (<, >, ===, etc)?

Answer 4

boolean

Question 5

What does the += “plus-equals” operator do?

Answer 5

Used to add content to an existing variable ( variable += 3; = variable = variable + 3;)