BROWSERS.txt

JavaScript Features:

                                 SF2 SF3 SF4 WKN FF  GC  OP  IE9 IE8 IE7 IE6

Object#hasOwnProperty            -   x   x   x   x   x   x   x   x   x   x
Object.defineProperty            -   -   -   x   -   x   -   x   1   -   -
Object.defineProperties          -   -   -   x   -   x   -   x   -   -   -
Object.getOwnPropertyDescriptor  -   -   -   x   -   x   -   x   1   -   -
Object.keys                      -   -   -   x   -   x   -   x   -   -   -
__defineGetter__                 -   x   x   x   x   x   x   -   -   -   -

1) Only on DOM Nodes

User Agents

Safari:

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

Google Chrome:

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.7 Safari/533.2

Firefox:

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-GB; rv:1.9.2) Gecko/20100115 Firefox/3.6

Camino:

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en; rv:1.9.0.18) Gecko/2010021619 Camino/2.0.2 (like Firefox/3.0.18)

Opera:

Opera/9.80 (Macintosh; Intel Mac OS X; U; en) Presto/2.2.15 Version/10.01