About Java Script

chooserank · Forum Noob Joined: 27 May 2010 Posts: 2

Javascript Is The Most Popular Scripting Language On The Internet, And Works In All Major Browsers, Such As Internet Explorer, Firefox, Chrome, Opera, And Safari.
• JavaScript was designed to add interactivity to HTML pages
• JavaScript is a scripting language
• A scripting language is a lightweight programming language
• JavaScript is usually embedded directly into HTML pages
• JavaScript is an interpreted language (means that scripts execute without preliminary compilation)
• Everyone can use JavaScript without purchasing a license
• JavaScript gives HTML designers a programming tool - HTML authors are normally not programmers, but JavaScript is a scripting language with a very simple syntax! Almost anyone can put small "snippets" of code into their HTML pages
• JavaScript can put dynamic text into an HTML page - A JavaScript statement like this: document.write("<h1>" + name + "</h1>") can write a variable text into an HTML page .
• JavaScript can react to events - A JavaScript can be set to execute when something happens, like when a page has finished loading or when a user clicks on an HTML element
• JavaScript can read and write HTML elements - A JavaScript can read and change the content of an HTML element.
• JavaScript can be used to validate data - A JavaScript can be used to validate form data before it is submitted to a server. This saves the server from extra processing
• JavaScript can be used to detect the visitor's browser - A JavaScript can be used to detect the visitor's browser, and - depending on the browser - load another page specifically designed for that browser.
• JavaScript can be used to create cookies - A JavaScript can be used to store and retrieve information on the visitor's computer
Example:
<html>
<body>
<script>
document.write("Hello World!");
</script>
</body>
</html>
The document.write command is a standard JavaScript command for writing output to a page.By entering the document.write command between the <script> and </script> tags, the browser will recognize it as a JavaScript command and execute the code line. In this case the browser will write Hello World! to the page.
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vigorandrik · Posted: Wed Jun 23, 2010 5:16 am Post subject:

JavaScript is completely disparate to JSP or Java. JavaScript is related to ECMAScript, a standardized scripting language. While the syntax is comparable to Java, the underlying structure and usage of the language is quite different. JavaScript is normally embedded directly into a web page. JavaScript programming is a most important module of AJAX, which has become a very important web technology.

josaphlewis · Forum Contributor Joined: 30 Jun 2010 Posts: 15

JavaScript is related to a standardized scripting language- ECMAScript. Though the syntax can be compared to Java, the usage and structure of the language are different.

nickelodon007 · Posted: Wed Jul 07, 2010 10:46 am Post subject:

JavaScript is an Object Oriented Scripting Language that allows you to generate dynamic HTML pages, tolerate you to process input data as well as maintain data, usually within the browser.

Sexpeare12312 · Forum Noob Joined: 05 Aug 2010 Posts: 2

JavaScript is an implementation of the ECMAScript language standard and is typically used to enable programmatic access to computational objects.

Sexpeare12312 · Forum Noob Joined: 05 Aug 2010 Posts: 2

JavaScript is an implementation of the ECMAScript language standard and is typically used to enable programmatic access to computational objects

liveseosolution · Forum Contributor Joined: 18 Mar 2011 Posts: 32

Thanks chooserank, This post was extremely fascinating, particularly because I was browsing for thoughts on this matter long while.