AJAX (Asynchronous JavaScript and XML)

AJAX is a technique that lets a web page send and receive data from a server without reloading the entire page. Allowing parts of a page to update instantly while the rest stays the same.

Common Examples of AJAX in Action

• Submitting a form and seeing a success message without a page reload
• Live search results that update as you type
• Loading more comments or posts without refreshing the page
• Updating a shopping cart total instantly

Live Examples

Here's a super simple example of using AJAX to load data from a server without refreshing the page:

Enter a number: Load Message

AJAX vs Traditional Requests

Traditional	AJAX
Full page reload	Partial page update
Slower user experience	Faster and smoother
Interrupts user flow	Keeps users engaged

When AJAX Makes Sense

• Updating small parts of a page
• Improving perceived performance
• Keeping users in flow