jscript and/or javascript

[Lando]

I'm a bit confused ...javascript and jscript are the same thing ?
javascript and java are related..........
javascript in windows differs from javascript in linux....?
Sorry,... if some question could be stupid .
Many thanks.

[Evertjan.]

Lando wrote on 21 aug 2006 in comp.lang.javascript:

I'm a bit confused ...javascript and jscript are the same thing ?

No, but nearly so:

jscript is MS implementation of ECMA javascript

All implementations of javascript are different in minor detail.

javascript and java are related..........

No!!!!

Only in name.

Even: never write Java script [you did not], when you mean Javascript.

javascript in windows differs from javascript in linux....?

It depends on the program/client.

IE uses jscript, ASP can use jscript serverside, wscript can use jscript.

Firefox uses and Netscape used sorts of ECMA javascript, etc.

But the detail differences are m9nor when you are starting to learn JS.

Sorry,... if some question could be stupid .

Not at all [be sorry I mean], if it were many of us would love that.

Propbably they will critisize me
for being to simplistic in my answer above.

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Lasse Reichstein Nielsen]

Lando <la*******@hotmail.comwrites:

I'm a bit confused ...javascript and jscript are the same thing ?

JavaScript is a language created by Netscape Corp. for scripting
their browser (Netscape 2) and web server.
JScript is a compatible language created by Microsoft Corp. for
making their browser (IE 3) compatible with Netscape's.

The languages were not completely identical ("embrace and extend"
on both sides), but they had a core that was standardized into
ECMAScript.

Parts of the environment that JavaScript/JScript scripts were
executed were also standardized as the W3C DOM.

Both browsers then converged on the standardized language, and
they are almost identical now (except for the occasional bug).

Other browsers also implemented an ECMAScript compatible language,
usually not giving it any name, but claiming to support "javascript".

javascript and java are related..........

Not really.

At the time JavaScript was created, Java Applets seemed to be all the
craze, and JavaScript was marketed as a way to communicate between
web pages and applets - scripting the Java applet. With permission
from Sun, the creators of Java, Netscape called the language JavaScript
as a marketing ploy. Then people realized that they didn't need the
applets any more, and that connection was lost.

People have gotten confused and thought Java and Javascript were
somehow related ever since. May those marketing people be damned
to eternity in customer support!

javascript in windows differs from javascript in linux....?

Not necessarily. There are different ECMAScript implementations.
The one in Mozilla/Firefox is the same across all platforms
where it runs, but differs from the on in IE, even when both
run on Windows.

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
DHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleDOM.html>
'Faith without judgement merely degrades the spirit divine.'

[Erwin Moller]

Lando wrote:

I'm a bit confused ...javascript and jscript are the same thing ?
javascript and java are related..........
javascript in windows differs from javascript in linux....?
Sorry,... if some question could be stupid .
Many thanks.

Yes, it is all very confusing.

Java:
Java is a fullflegded serious programming language, strongtyped, made by
Sun.
It became popular because of (and here starts the confusion) one special
use: as an applet in a webpage.
Java/applets was one of the first things that could make your webpage come
alive by programming interaction into it.

Then Netscape developed a language that they dubbed Javascript, probably
taking a ride along with Java which was becoming very popular.

So Java and Javascript have nothing to do with each other. oth are object
oriented (OOP) but that about it.

Microsoft (M$) released with their IE3 an implementation of Javascript named
JScript. Very M$, confusion without reason. :-/

EMCAScript is the official name for JavaScript.

Futhermore: JavaScript is NOT different on *nix and Windows, but every
BROWSER has its own subset and strange/faulthy implementation.
So it is a browserthing.
You can expect that your JavaScript runs the same on the same version of
Firefox on W$ and *nix.

The big trouble with JavaScript is the browser it runs in. Does it support
A? and B? etc.

Hope this helps a bit.
Also: Just go to www.wikipedia.com and look up JScript, EMCAScript,
JavaScript, Java, etc. It contains a good overview for (confused) starters.

Regards,
Erwin Moller

[Tim Slattery]

Lando <la*******@hotmail.comwrote:

>I'm a bit confused ...javascript and jscript are the same thing ?

Yes, basically. JScript is Microsoft's implementation of Javascript.

>javascript and java are related..........

No. They are totally different. The name confusion goes all the way
back to Netscape trying to make their scripting language sound cool by
associating it with Sun's new Java language.

>javascript in windows differs from javascript in linux....?

No! Javascript is executed by the browser (usually), and runs the same
regardless of what OS the browser is being run on. There are some
differences between browsers. Nowadays, those differences are not huge
and can be gotten around.

--
Tim Slattery
Sl********@bls.gov