Facebook: Ajax Technologies has been integrated on our facebook page for making it more interactive.
For e.g. When we like or comment any post on the facebook without loading. It permits live chat without reloading page.
Google Search Engine: When we are pressing any character on URL, On the bases of that character, Google automatically fetches data from the server and suggests. This whole process happens through the integrated AJAX functionality.
Button: In buttons, when we select one option, on the bases of that specific option, by default character will display without refreshing page.
For e.g. On clicking button of CSE, the default subjects can be automatically displayed without reloading page.