What does Asynchronous means in Ajax? and also how does Ajax know when to pull data without server polling?
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What does Asynchronous means in Ajax? and also how does Ajax know when to pull data without server polling?
Asynchronous means that the script will send a request to the server, and continue it’s execution without waiting for the reply. As soon as reply is received a browser event is fired, which in turn allows the script to execute associated actions.
Ajax knows when to pull data from server, because you tell it when to do it.