0
The biggest problem that JavaScript has with the browsers is that the language is not the same between them.
This comes from the fact that for a very long time, there was no standardized definition of the language.
In 1995, (the early days of the "Browser Wars") Netscape released the first version of JavaScript as part of its ongoing competition with Microsoft's internet Explorer. As was the case in those day, Microsoft quickly developed a similar client-side language (JScript) for use in its browsers. The languages were similar in function and form, but were not duplicates of one another.
This caused a phenomenon to occur know as "code-forking." To get a webpage to display and behave correctly, you had to code it for Netscape, then code it for Internet Explorer, and often you would have to code for separate versions of those browsers. Then a web developer would have to code some means of identifying which browser you were using and route you to the appropriate page.
This was a maintenance nightmare. So, the W3C and the European Computer Manufacturers Association created a standardized version of a JavaScript-like, client-side language called ECMAScript in 1997.
The latest version of this standard is ECMA-262 ed 5.1. Virtually all manufacturers now claim to be compliant with the standard, although there are legacy quirks. (I won't go so far as to say they're lying--but "compliance" has to be stretched pretty far in this case.)
These quirks still haunt us. To get Internet Explorer to register an event handler, for instance, I have to use the addEventListener() method. If I'm working in a Webkit or Gecko browser, I use the ECMA standard, which is attachEvent().
There'd be a lot more complaining if it wasn't for the fact that most JavaScript frameworks (jQuery, Ext, Prototype, etc.) hide the complexity of dealing with this from me. In fact, in my opinion as a web developer, this layer of abstraction is exactly why these frameworks are so popular.
The W3C is working currently on a new version of ECMAScript that they're calling "Harmony." I have my doubts it will get done, but if it does, it will likely bring the browser manufacturers even closer to true compliance.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Can all browsers interpret javascript?
Most modern browser can, but not all browsers are able to interpret JavaScript. Even the newest browsers normally give the user the ability to turn JavaScript completely off. According to a report from Yahoo! in October 2010, nearly 1% of their users have JavaScript disabled.
Which operating system supports the JavaScript programs to execute?
As long as there is support for JavaScript in browsers, JavaScript can be called on any O/S, any platform and any machine
Can a java program run on the browser?
No it can't, this is the difference between Java and JavaScript (which don't have that much to do with one-another) Java is more like C in that it can on the web-server or on any computer really, but it is not like JavaScript which runs inside a sandbox inside the browser.
Is there an offline equivelent to javascript?
JavaScript is just a language. It's far from restricted to web browsers. Such examples of offline JavaScript use include AIR <http://www.adobe.com/products/air> or even a standalone V8 <http://v8.googlecode.com> engine.
Java run in any computer but java script not why?
Java and Javascript are not the same thing and are not realted to each other. Javascript is not run on "computers" it is run on browsers (which admitedly run on computers) So, if your computer has a browser, it most likely runs javascript, of course this depends on the browser, but all major browser run javascript.
Can all browsers interpret javascript?
Most modern browser can, but not all browsers are able to interpret JavaScript. Even the newest browsers normally give the user the ability to turn JavaScript completely off. According to a report from Yahoo! in October 2010, nearly 1% of their users have JavaScript disabled.
How does document.close work?
The command is javascript JavaScript is interpreted by the browser browsers use JavaScript engines to execute the commands each browser differs
Which operating system supports the JavaScript programs to execute?
As long as there is support for JavaScript in browsers, JavaScript can be called on any O/S, any platform and any machine
What is the browser that is capable of java-script?
Almost all modern browsers support javascript. The most popular browsers (all of which support javascript) are Microsoft's Internet Explorer, Mozilla's Firefox, Apple's Safari and Google's Chrome.
What javascript on you browser or upgrade to a javascript capable browser to register for facebook?
all browsers are capable of running javascript, and registering for facebook. you probably need to enable javascript on your browser which to tell you how i would need to know which browser you are using
Can a java program run on the browser?
No it can't, this is the difference between Java and JavaScript (which don't have that much to do with one-another) Java is more like C in that it can on the web-server or on any computer really, but it is not like JavaScript which runs inside a sandbox inside the browser.
What is portability of java script?
As long as there is support for it, Javascript will work on all browsers and all Operating Systems
How can you show another webpage in your site with javascript?
Not easily, browsers block that kind of thing deliberately.Try an iframe, using Javascript to change the source as needed. Some browsers will give a pop-up asking whether you want to allow this, others will require that you change the browser security settings.The easiest way to include content from other sites is to forgo the Javascript and do it on the server.
Is there an offline equivelent to javascript?
JavaScript is just a language. It's far from restricted to web browsers. Such examples of offline JavaScript use include AIR <http://www.adobe.com/products/air> or even a standalone V8 <http://v8.googlecode.com> engine.
Why isn't your java working for your Mozilla browser?
Javascript can be enabled or disabled in the browsers settings. You might currently have it turned off.
You are creating a web page you want to ensure users who have older browsers that cannot display javascript can still view your home page how should you proceed?
Just enclose all your scripts in <!-- --> So for example: <script type="text/javascript"> <!-- Your script here --> </script> That way, older browsers will skip the script part, while current browsers will just execute the script without any problem.
Java run in any computer but java script not why?
Java and Javascript are not the same thing and are not realted to each other. Javascript is not run on "computers" it is run on browsers (which admitedly run on computers) So, if your computer has a browser, it most likely runs javascript, of course this depends on the browser, but all major browser run javascript.
