Posted in: AJAX
- AJAX is based on Javascript, and the main functionality is to access the web server inside the Javascript code.
- We access to the server using special objects; we send data and retrieve data.
- When user initiates an event, a javascript function is called which accesses server using the objects.
- The received information is shown to the user by means of the Javascript’s functions.
Advantages:
- Independent of server technology.
- Apart from obtaining the XMLHTTP object, all processing is same for all browser types, because Javascript is used.
- Permits the development of faster and more interactive web applications.
Disadvantages:
- The back button problem. People think that when they press back button, they will return to the last change they made, but in AJAX this doesn not hold.
- Possible network latency problems. People should be given feedback about the processing.
- Does not run on all browsers.