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CS202 GDB Fall 2019 Solution & Discussion

Discussion Topic
Suppose you are assigned a task to develop a web application for stock exchange market. One of the client requirements is to show the updated stock exchange data of Pakistan, China, America, Australia and India. The data of Pakistan, China America, Australia and India should be updated after every 2 seconds, 4 seconds, 1 second, 6 seconds and 8 seconds respectively. Another requirement is to show summary of updated data of all given countries after every 8 seconds. If you as a developer are provided with the following two options to choose to implement the above requirements, which option would you prefer and why? Support your answer with solid arguments.
 Option 1: Use AJAX
Option 2: Reload whole page after each update
Give your opinion with solid reasons to support your answer.

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CS202 GDB IDEA

Answer

AJAX

Reason

  • Update a web page without reloading the page
  • AJAX is a technique for creating fast and dynamic web pages.
  • Request data from a server - after the page has loaded
  • Receive data from a server - after the page has loaded
  • Send data to a server - in the background

https://www.w3schools.com/xml/ajax_intro.asp

https://www.w3schools.com/asp/asp_ajax_intro.asp

For more, please visit above links and also search on the internet

CS202 GDB 2019-2020

I will use AJAX for this Purpose Because AJAX allows web pages to be updated without reloading the whole page. It is a technique for creating very fast and dynamic web pages. Here are some real-life examples are like Gmail, Facebook, YouTube and Google Maps, etc.

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