Why ajax?

Why ajax?

Ajax applications have the following advantages:
1. Improved user experience through asynchronous mode
2. optimized the transmission between the browser and the server, reduced unnecessary data round-trips, and reduced bandwidth usage
3. the Ajax engine runs on the client and undertakes part of the work originally undertaken by the server, thus reducing the server load for a large number of users.
2. What are the biggest characteristics of AJAX.
Ajax can achieve dynamic non-Refresh (partial refresh)
Data can be maintained without updating the entire page. This allows Web applications to respond quickly to user actions and avoid sending unchanged information on the network.