JavaScript Variable Types

JavaScript supports five different types of variable. These variable types are outlined in the following table together with a brief description of each type:

Type	Example	Description
boolean	true, false	The boolean variable is used to record a value of either true or false. Internally this is essentially stored as 1 for true and 0 for false.
number	1, -31, 0.023	The number variable holds any type of number, either an integer or a real number.