JavaScript Operators and Expressions

Question 1

What data type is returned by an arithmetic operation?

Answer 1

number data types

Question 2

What is string concatenation?

Answer 2

a string that is formed through a combination of multiple strings

Question 3

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

Answer 3

sum of numeric operations or string concatenation

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

adding a value to an existing variable and assigning it back to that same variable