Tuesday, October 21, 2014

Basics Of Array In Javascript

Array In JavaScript:

  • An array is a special variable, which can hold more than one value, at a time.
  • Each element in the array has its own ID so that it can be easily accessed.
  • It is important to realize that each value is stored in one element of the array and
  • These elements start at 0.

Types Of JavaScript:
1)Basic Array :
        - Basic Array represent one or value separated by commas. 
- The value can be a mixtures of a string, numbers and variables.
- Each array item gets an index number associated with it`s key.
Build a basic array and access its item directly by their index number.
var choice=[“RED”,”Cricket”,”Kal Ho Na Ho”];
document.write(choice[0]+”Is my Favourite Color.<br/>”);
document.write(choice[1]+”Is my Favourite Game.<br/>”);
document.write(choice[2]+”Is my Favourite Movie.<br/>”);

Populate array by placing value directly into  index position of the array.
var game=[];
game[0]=”Cricket”;
game[1]=”Football”;
game[2]=”Chess”;
document.write(game);
                  

2)Associative Array :
        - Associative array give you a way to label your array item key.
- The key is directly associated to its value in a meaningful way.
- Example:

                var arr={name:”KALPESH”, surname=”RAKHOLIYA”,age=22};
document.write(arr[“name”]+”And Surname Is:”+arr[“surname”]+”<br>”);
document.write(arr[“name”]+”And Age Is:”+arr[“age”]+”<br>”);

3)Multidimensional Array :
        - Multidimensional array is an array that holding multiple array that can be of various types.
- Example:
var arr=new Array
(
[“Sachin”,”Sehwag”,”Kohli”],
[“Watson”,”Warner”,”Hussy”],
[“Cook”,”Campton”,”Piterson”]
);
document.write(arr[0]+”<br>”);
document.write(arr[1]+”<br>”);
document.write(arr[2]+”<br>”);


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Chandran C said...

SMPS problem can also cause to restart your PC. Good post with good details. Post more photos on how to service the smps and also if you can also post a video in the blog. Thanks from a computer and home appliance service person.

Priya Kannan said...

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