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I want to know the following-

 

* How can I manage the total no. of users online without refreshing the page again?

  (Can it be possible by using cookies and AJAX? if yes, then how? plz give me some hint...)

 

* What is the best practical example of polymorphism?

 

* Where and how to use OOPS in javascript?? Just Gimme some hint....

 

TIA

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I want to know the following-

 

* How can I manage the total no. of users online without refreshing the page again?

   (Can it be possible by using cookies and AJAX? if yes, then how? please give me some hint...)

 

* What is the best practical example of polymorphism?

 

* Where and how to use OOPS in javascript?? Just Gimme some hint....

 

TIA

 

1: Google

2: Google

3: Google

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