JavaScript-operators-and-expressions

Question 1

What data type is returned by an arithmetic operation?

Answer 1

numerical value.

Question 2

What is string concatenation?

Answer 2

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

to add to variables together or add numbers together

Question 4

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

Answer 4

booleans

Question 5

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

Answer 5

adds the value on the right, to the variable on the left, and then assigns that value back into the variable on the left