Menu
Coming from a Java background, there's something you install to get Java to run - i.e., the JRE. You're able to see the Java executable files right there on your hard drive.
Now enter JavaScript. I'll type something in Notepad, save it and open it on my browser. And it works just like magic!
Where exactly is JavaScript? Obviously it's embedded in the browser code, but there must be some core JavaScript library somewhere. Any browser didn't exist at one point, surely they got their core JavaScript code from some source.
Where is the source code of JavaScript itself? Something like jquery.js, backbone.js ... where is the "javascript.js"?
Who is the authority that establishes the requirements for JavaScript? While the custodian of Java is clearly Oracle, I don't see any counterpart "owner" for JavaScript.
453
In the Internet Options window, click the Security tab. In the Security tab, click Custom Level button. Scroll down the list (close to the bottom) and locate Active Scripting. Select Disable, Enable, or Prompt to adjust your JavaScript settings.
On Google Chrome, JavaScript is enabled by default, but you can verify if it works through the Settings menu. To reveal the Settings menu, simply click on three tiny black dots at the top-right corner of your Chrome window.
If you click the "Test JavaScript" button, then the text box below it should show 'Yes, JavaScript is enabled. ' After you click it, if the text is showing "enabled", then assume JavaScript is running.
http://en.wikipedia.org/wiki/JavaScript_engine
Which engine is used differs by browser.
For example...
Firefox: https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey
Chrome: https://code.google.com/p/v8/
Safari: http://en.wikipedia.org/wiki/WebKit#JavaScriptCore
Internet Explorer: http://en.wikipedia.org/wiki/Chakra_(JScript_engine)
See Node.js below...
http://en.wikipedia.org/wiki/JavaScript
It was born at Netscape ( first called 'Mocha' ), so it is maintained by Mozilla, i.e...
Netscape created The Mozilla Foundation, long ago, and the Mozilla suite of Firefox, Thunderbird, etc... is where Netscape Communicator went.
But yes, the trademark is technically "owned" by Oracle:
It is standardized by ECMA: http://www.ecma-international.org/
Language Specification: http://www.ecma-international.org/publications/standards/Ecma-262.htm
JavaScript is so integral to so many technologies that it is standardized. As I mentioned, it is maintained by ECMA, just like HTML, XML and CSS are standards maintained by W3C.
( ECMA: European Computer Manufacturers Association )
JavaScript is moving in a direction similar to Java too, with things like Node.js happening. Node.js is a JavaScript Engine, without a browser... meaning, JavaScript is now server-side as well as client-side. It is becoming as much a programming language as it is a scripting language, some believe.
In my opinion ... as with other scripting and programming languages, JavaScript is truly owned by the Open Source community. Coders make suggestions about its specification and contribute to its engines. Testers, developers, 'users' and technology manufacturers and inventors who expand JavaScript are the ones who guide it in reality.
The "legal" owners depend on the Open Source community. They benefit from the community, and hold ownership like a trophy, or a title to defend, often just to protect the reliability of the technology as a viable corporate option. Oracle is well known for doing this. They did this with MySQL, VirtualBox, etc. Oracle is more of a curator than an owner.
151
Javascript (JS) is the client side language and it is embeded into the browser's parser which is actually the core of the browser and control the browser. In parser there are also css, html and other client side languages thats why browser execute the javascript, css, html, xml and other client side languages.
It has also become common in server-side programming, game development and the creation of desktop applications. Its syntax was influenced by C. JavaScript copies many names and naming conventions from Java, but the two languages are otherwise unrelated and have very different semantics. The key design principles within JavaScript are taken from the Self and Scheme programming languages. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles.
JavaScript was formalized in the ECMAScript language standard and is primarily used as part of a web browser (client-side JavaScript). This enables programmatic access to computational objects within a host environment.
Javascript appeared in 1995 and designed by Brendan Eich and developer was Netscape Communications Corporation, Mozilla Foundation.
When ever you see the javascript file it has extension of js (javascript).
JavaScript was born at Sun Microsystems. It was used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla Foundation.
jQuery is written in javascript language.
jQuery is a cross-platform, fast, small, and feature-rich JavaScript library and greatly simplifies JavaScript programming.
See also the link
http://en.wikipedia.org/wiki/JavaScript_engine
http://en.wikipedia.org/wiki/JavaScript
28
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
