what is java script? 

jeenu JavaScript is a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.[1][2] The language is best known for its use in websites (as client-side JavaScript) but is also used to enable scripting access to objects embedded in other applications (for example Microsoft Gadgets in the Windows Sidebar).

JavaScript, despite the name, is essentially unrelated to the Java programming language though both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was renamed from LiveScript in a co-marketing deal between Netscape and Sun in exchange for Netscape bundling Sun's Java runtime with their then-dominant browser. The key design principles within JavaScript are inherited from the Self programming language.

"JavaScript" is a trademark of Sun Microsystems. It was used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla Foundation
this is taken from source http://en.wikipedia.org/wiki/JavaSc ript

Answered by laks at 3:59 PM on May 15, 2008

JavaScript is an interpreted programming or script language from Netscape. It is somewhat similar in capability to Microsoft'sVisual Basic, Sun's Tcl, the UNIX-derived Perl, and IBM's Rexx. In general, script languages are easier and faster to code in than the more structured and compiled languages such as C and C++. Script languages generally take longer to process than compiled languages, but are very useful for shorter programs.

JavaScript is used in Web site development to do such things as:

* Automatically change a formatted date on a Web page
* Cause a linked-to page to appear in a popup window
* Cause text or a graphic image to change during a mouse rollover

JavaScript uses some of the same ideas found in Java, the compiled object-oriented programming derived from C++. JavaScript code can be imbedded in HTML pages and interpreted by the Web browser (or client). JavaScript can also be run at the server as in Microsoft's Active Server Pages before the page is sent to the requestor. Both Microsoft and Netscape browsers support JavaScript, but sometimes in slightly different ways.

Answered by Nagendra at 9:03 AM on May 15, 2008

well jeenu,JavaScript is a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.[1][2] The language is best known for its use in websites (as client-side JavaScript) but is also used to enable scripting access to objects embedded in other applications (for example Microsoft Gadgets in the Windows Sidebar).

JavaScript, despite the name, is essentially unrelated to the Java programming language though both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was renamed from LiveScript in a co-marketing deal between Netscape and Sun in exchange for Netscape bundling Sun's Java runtime with their then-dominant browser. The key design principles within JavaScript are inherited from the Self programming language.

Answered by satyaiitk at 9:28 PM on April 29, 2008

JavaScript is a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.
The language is best known for its use in websites (as client-side JavaScript) but is also used to enable scripting access to objects embedded in other applications (for example Microsoft Gadgets in the Windows Sidebar).

JavaScript, despite the name, is essentially unrelated to the Java programming language though both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was renamed from LiveScript in a co-marketing deal between Netscape and Sun in exchange for Netscape bundling Sun's Java runtime with their then-dominant browser. The key design principles within JavaScript are inherited from the Self programming language.

"JavaScript" is a trademark of Sun Microsystems. It was used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla Foundation.

source

http://en.wikipedia.org/wi ki/JavaSc ript

Answered by Smarty at 11:39 PM on April 25, 2008

JavaScript is an interpreted programming or script language from Netscape. It is somewhat similar in capability to Microsoft'sVisual Basic, Sun's Tcl, the UNIX-derived Perl, and IBM's Rexx. It adds interactive functions to HTML pages, which are otherwise static, since HTML is a display language, not a programming language. JavaScript is easier to use than Java, but not as powerful and deals mainly with the elements on the Web page.

Answered by Ashish Yadav at 8:45 PM on April 25, 2008

JavaScript is an interpreted programming or script language from Netscape.It adds interactive functions to HTML pages, which are otherwise static, since HTML is a display language, not a programming language. JavaScript is easier to use than Java, but not as powerful and deals mainly with the elements on the Web page. On the client, JavaScript is maintained as source code embedded into an HTML page. On the server, it is compiled into bytecode (intermediate language), similar to Java programs.

Answered by Kajal Sharma at 2:26 PM on April 25, 2008

jeenu it is JavaScript is a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.[1][2] The language is best known for its use in websites (as client-side JavaScript) but is also used to enable scripting access to objects embedded in other applications (for example Microsoft Gadgets in the Windows Sidebar).

JavaScript, despite the name, is essentially unrelated to the Java programming language though both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was renamed from LiveScript in a co-marketing deal between Netscape and Sun in exchange for Netscape bundling Sun's Java runtime with their then-dominant browser. The key design principles within JavaScript are inherited from the Self programming language.

"JavaScript" is a trademark of Sun Microsystems. It was used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla Foundation.[
for more inf check source http://en.wikipedia.org/wiki/JavaSc ript

Answered by raj u at 2:02 PM on April 25, 2008

JavaScript, developed by Netscape, is a smaller language that does not create applets or standalone applications.

In its most common form today, JavaScript resides inside HTML documents, and can provide levels of interactivity far beyond typically flat HTML pages -- without the need for server-based CGI (Common Gateway Interface) programs.

Furthermore it is important to understand that a Java-enabled browser is not automatically a JavaScript-enabled browser: the two technologies require entirely separate interpreters (licensed from separate companies) to handle the languages. It is unlikely, however, that future browsers will incorporate one but not the other (plus or minus implementation timetables on various platforms).

Advantages of Java script are :

1) JavaScript effects are also much faster to download than some other front-end technologies like Flash and Java applets. In fact, unless you're writing a massive JavaScript application, it's quite likely that no significant extra download time will be added to a page by using JavaScript on it. Nor do users need to download a plug in before they can view your JavaScript, as they would with Flash for example, they simply need a browser that supports it – and, of course, most modern browsers do.

2) Other advantages include the fact that you don't need any extra tools to write JavaScript, any plain text or HTML editor will do, so there's no expensive development software to buy. It's also an easy language to learn, and there's a thriving and supportive online community of JavaScript developers and information resources.

For more detailed information, visit the source site :

http://www.dannyg.com/ref/java vsjavascript.html

Answered by Alok Gupta at 10:15 PM on April 24, 2008

A type of programming which can add interactivity and function to a web site. Some examples include drop down menus navigation button effects, interactive forms, slide shows, and pop open windows. There are many applications available to enrich a web site.
JavaScript is a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.[1][2] The language is best known for its use in websites (as client-side JavaScript) but is also used to enable scripting access to objects embedded in other applications (for example Microsoft Gadgets in the Windows Sidebar).

JavaScript, despite the name, is essentially unrelated to the Java programming language though both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was renamed from LiveScript in a co-marketing deal between Netscape and Sun in exchange for Netscape bundling Sun's Java runtime with their then-dominant browser. The key design principles within JavaScript are inherited from the Self programming language.
JavaScript is a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.[1][2] The language is best known for its use in websites (as client-side JavaScript) but is also used to enable scripting access to objects embedded in other applications (for example Microsoft Gadgets in the Windows Sidebar).

JavaScript, despite the name, is essentially unrelated to the Java programming language though both have the common C syntax, and JavaScript copies many Java names and naming conventions. The language was renamed from LiveScript in a co-marketing deal between Netscape and Sun in exchange for Netscape bundling Sun's Java runtime with their then-dominant browser. The key design principles within JavaScript are inherited from the Self programming language.
"JavaScript" is a trademark of Sun Microsystems. It was used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla
"JavaScript" is a trademark of Sun Microsystems. It was used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla

Answered by jaivir at 6:09 PM on April 24, 2008

A type of programming which can add interactivity and function to a web site. Some examples include drop down menus navigation button effects, interactive forms, slide shows, and pop open windows. There are many applications available to enrich a web site.
This is a programming language that runs on a client's browser which makes a page more interactive. Java Script can do things such as make animated images, pop-up windows, cause an image to change when your mouse rolls over it, etc.

Answered by ayisha at 5:44 PM on April 24, 2008