Subject: Advanced Internet Technology

Topic: RIA and Mashup

Difficulty: Low

Relationship AJAX and JavaScript:

JavaScript is an essential part of AJAX

• AJAX sends request to the server and does not wait for the response. It performs other operations on the page during that time. Whereas, JavaScript makes a request to the server and waits for response.

• AJAX does not require the page to refresh for downloading the whole page, whereas JavaScript manages and controls a Web page after being downloaded.

• AJAX minimizes the overload on the server since the script needs to request once, while JavaScript posts a request that updates the script every time.

• AJAX is an approach towards page reloading, while JavaScript is a way to incorporate content on the webpage.

• AJAX allows the coder to send a request for data asynchronously in order to load new data without changing the web page.

• JavaScript allows the creation of dynamic webpages by providing a new level of interactivity.

• AJAX supports the server side scripting language, whereas JavaScript supports the client side scripting language.

• AJAX can load a webpage after it has been loaded for the first time. Whereas, JavaScript cannot reload the page after it is loaded. AJAX cannot be used to install a Trojan in the computer, while JavaScript can be used.