node.js - Difficulty understanding nodejs documentation -


i'm confused section

http://nodejs.org/api/http.html#http_http_createserver_requestlistener

the requestlistener function automatically added 'request' event.

what term "added" mean?

also here http://nodejs.org/api/http.html#http_event_request

what the code directly beneath mean function (request, response) { }? mean that function gets passed each time there request?

if statement

var app = http.createserver( function reqlistener(request, response){...} ).listen(1337);

where function reqlistener requestlistener argument, equivalent following

var app = http.createserver().listen(1337); app.on('request', function reqlistener(request, response){...} );

so shortcut providing listener event request during server start itself. event request emitted each request once when received server.


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