Java Script Basics

Firstly every one know about javascript basics. Introduction to JavaScript is a scripting language most often used for client-side web development. JavaScript is an implementation of the ECMAScript standard. The ECMAScript only defines the syntax/characteristics of the language and a basic set of commonly used objects such as Number, Date, Regular Expression, etc. The JavaScript supported in the browsers typically support additional objects. e.g., Window, Frame, Form, DOM object, etc.

What can we do with JavaScript?

To create interactive user interface in a web page (e.g., menu, pop-up alert, windows, etc.) Manipulating web content dynamically Change the content and style of an element Replace images on a page without page reload Hide/Show contents Generate HTML contents on the fly Form validation AJAX (e.g. Google complete) etc.

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