Types and Operators

Primitive Type (Undefine, Null, Boolean, Number, String, Symbol)

: A type of data that represents a single value

Undefine

: represents lack of existence     (you shouldn't set a variable to this)

Null

: represents lack of existence     (you can set a variable to this)

Operator

: A special function that is syntactically (Written) differently

 Generally, operators take two parameters and return one result