JS Operators and Expressions

Question 1

What data type is returned by an arithmetic operation?

Answer 1

Number

Question 2

What is string concatenation?

Answer 2

Adding one string to another

Question 3

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

Answer 3

to add numbers and to concatenate strings

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

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