How to detect konami code with Rx.js (reactive extensions for javascript)? -


i want start learning rx.js , i'm looking cool example start ball rolling. how detect konami code rx.js?

i want detect sequence of key press events (up down down left right left right b a) , display image if happens.

here version:

<html> <head> <script type="text/javascript" src="jquery-1.4.4.min.js"></script> <script type="text/javascript" src="rx.js"></script> <script type="text/javascript" src="rx.jquery.js"></script> </head> <body> <p id="result"></p> <script type="text/javascript">     $(function() {         var konami = $(document).toobservable("keyup").select(function(e) {             return e.keycode         }).skipwhile(function(k) {             return (k != 38)         }).bufferwithcount(             10         ).where(function(ks) {             return ks.length == 10 &&                 ks[0] == 38 && ks[1] == 38 &&                 ks[2] == 40 && ks[3] == 40 &&                 ks[4] == 37 && ks[5] == 39 &&                 ks[6] == 37 && ks[7] == 39 &&                 ks[8] == 66 && ks[9] == 65         })          var konamisub = konami.subscribe(function(e) {             $("#result").text("konami!")             $("#result").fadein().fadeout()         })     }) </script> </body> </html>

i convert stream of keyup events stream of keycodes select, ignoring keypresses until user press (keycode 38) skipwhile, collecting 10 keystrokes bufferwithcount, checking keystrokes where.

i tried using bufferwithtime, tends cut in middle of keystrokes.

if can suggest improvements, love hear them.


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