javascript-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 two or more strings together using the plus operator

Question 3

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

Answer 3

To add numbers, To concat strings, to coerce data types

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

Add and store the result into the variable declared on the left.