Javascript

Update me on javascript, EXPERT /PROG/RAMMERS

How does it integrate with HTML5?
Are  there any IDEs/What is the best IDE?
How can I make an HTML request without reloading or redirecting the visitor of the webpage?
What is a websocket?

How does it integrate with HTML5?
http://google.com/

Are  there any IDEs/What is the best IDE?
http://google.com/?q=emacs

How can I make an HTML request without reloading or redirecting the visitor of the webpage?
http://google.com/

What is a websocket?
http://google.com/

>>2
http://google.com/search?q=emacs
I support this post. and FTFY
Also,
http://google.com/search?q=emacs+js-mode

I use nano with some expert syntax highlighting