Specifically, in your frame of reference: the Javascript Engine is roughly equivalent to the Java Virtual Machine (JVM) -- i.e. the component that handles compiling/evaluating your code.
Tomcat is an application written in Java which implements the Servlet API. For web application development in Javascript using Node, the Express framework [1] is probably the most popular. It isn't a direct equivalent to the Servlet API (the approach is quite different) but it lives at the same level in the application stack. Server-side Javascript doesn't, in and of itself, give you anything specific to auto-updating web pages; that's something you have to implement on top of HTTP, same as with any other server-side technology. However, socket.io [2] is a very popular project which makes it particularly easy to accomplish such things with Node. Finally, note that Node is a more platform than just a web server. You can use it to accomplish any programming task, but it particularly excels at anything requiring a lot of concurrent IO. I haven't read the book you referenced, but I'm sure it would be a great way to improve your understanding of what Node is and how you might use it. L. On 2011-08-20, at 1:58 PM, Amit Agarwal wrote: > Javascript engine is the part of a browser which is responsible for executing > loaded Javascript code. Better your JS engine executes JS faster. > > Details? > http://en.wikipedia.org/wiki/JavaScript_engine > > Example? > http://www.youtube.com/watch?v=KTkTBKSnqbA > > > > On Sat, Aug 20, 2011 at 6:59 PM, Rahul <[email protected]> wrote: > I searched on Wikipeidia , but i didn't understood the explanation. > > Many article says that Javascript engine is used for "Javascript Web > server", > > But how come web server ? > > I have worked on Tomcat server and having knowledge of J2EE framwork, > here a browser send request using a url, now this request hits the web > container(Tomcat), > now webcontainer creates req. and res. object and passes it to > servlets deployed in webcontainer. > > > > Now from my above knowledge of Webcontainer can you please explain how > come javascript be > a web container, and how does it helps us in client-side javascript > > > Does javascript engine has anything to do with auto-refresh of > webpages, like live scores of sports or stock prices listing , > something like this sort. > > Can you please suggest some books on javascript engine or Javascript > webserver, > > Can O'really's Node: Up and running will be helpfull reading, > > > Wating for a reply > > -- > To view archived discussions from the original JSMentors Mailman list: > http://www.mail-archive.com/[email protected]/ > > To search via a non-Google archive, visit here: > http://www.mail-archive.com/[email protected]/ > > To unsubscribe from this group, send email to > [email protected] > > > -- > To view archived discussions from the original JSMentors Mailman list: > http://www.mail-archive.com/[email protected]/ > > To search via a non-Google archive, visit here: > http://www.mail-archive.com/[email protected]/ > > To unsubscribe from this group, send email to > [email protected] -- Laurie Harper http://laurie.holoweb.net/ -- To view archived discussions from the original JSMentors Mailman list: http://www.mail-archive.com/[email protected]/ To search via a non-Google archive, visit here: http://www.mail-archive.com/[email protected]/ To unsubscribe from this group, send email to [email protected]
