Javascript
1)Javascript is a client-side (in the browser) scripting language.
2)Javascript lets you supercharge your HTML with animation, interactivity, and dynamic visual effects
3)JavaScript can make web pages more useful by supplying immediate feedback.
4)JavaScript is the common term for a combination of the ECMAScript programming language plus some means for accessing a web browser's windows and the document object model (DOM).
5)JavaScript was designed to add interactivity to HTML pages
6)Everyone can use JavaScript without purchasing a license
jQuery
1)jQuery is a library/framework built with Javascript.
2)It abstracts away cross-browser compatibility issues and it emphasises unobtrusive and callback-driven Javascript programming
3)jQuery (website) is a javascript framework that makes working with the DOM easier by building lots of high level functionality that can be used to search and interact with the DOM
4)jQuery implements a high-level interface to do AJAX requests
5)jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development
AJAX
1)AJAX (Asynchronous Javascript XML) is a method to dynamically update parts of the UI without having to reload the page - to make the experience more similar to a desktop application.
2)AJAX is a technique to do an XMLHttpRequest (out of band Http request) from a web page to the server and send/retrieve data to be used on the web page
3)It uses javascript to construct an XMLHttpRequest, typically using different techniques on various browsers.
4)AJAX is a set of functions of the language JavaScript
5)Examples of applications using AJAX: Google Maps, Gmail, Youtube, and Facebook tabs.
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