Wow. Thanks. Though really, I don't know whether to thank or curse you for exposing to me this particular skeleton in js's closet. =)
On Apr 26, 6:59 am, Thomas Broyer <[email protected]> wrote: > On Apr 25, 7:18 am, Erem <[email protected]> wrote: > > > Hey guys, > > > I observed some unexplainable behavior in GWTTestCase today. Has > > anyone else seen this? If not I'll go ahead and file an issue. > > > The problem: > > Any GWT/JSNI-created Javascript Array that I pass to functions defined > > in an external .js library will return FALSE for "instanceof Array". > > Because GWT code runs in an iframe, the Array object (and prototype of > any array created within the iframe) is not the same as $wnd.Array. > In other words, "instanceof" won't work cross-frame; this is a known > JS flaw. In browsers following the ECMAScript specification to the > letter, it's possible to implement an "isArray" function as: > Object.prototype.toString.call(o) === '[object Array]', only if the > toString methods hasn't been overwritten of course! > > See:http://perfectionkills.com/instanceof-considered-harmful-or-how-to-wr... > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
