Javascript variables

The variables can be used to hold the values (or) expressions.

The variable names must begin with an alphabetic or underscore(_)

Ex:  

var x;

var y=10;

var name=”rajendra”;

var z=x+y;

·         The name of the variable can be short(or) descriptive, there is no restriction on the length of the name.

·         Whenever we store string values into the variables they must be enclosed in”” (double quodes)