JavaScript Learning First day (JavaScript data type)

1.JavaScript Boolean

Boolean (logic) can have only two values: TRUE or FALSE.

var x=truevar y=false

2.JavaScript arrays

var cars=New  Array (); cars[0]= "Audi"; cars[1]= "BMW"; cars[2]= "Volvo";

or (condensed array):

var cars=New Array ("Audi", "BMW", "Volvo");

or (literal array):

var cars=["Audi", "BMW", "Volvo";

3.JavaScript objects

Objects are separated by curly braces. Inside the parentheses, the properties of the object are defined in the form of name and value pairs (name:value). Attributes are separated by commas:

var person={firstname: "Bill", LastName: "Gates", id:5566};

Object properties are addressed in two ways:

Name=person.lastname;name=person["LastName"];

JavaScript Learning First day (JavaScript data type)