677518 - keys() should return an error if it doesn't exist when calling against a HTML canvas element

Status: RESOLVED WORKSFORME

(DevTools :: Console, defect)

Description

[Maniac Vlad Florin (:vladmaniac)]

Attachment: simple canvas test page

Build identifier: Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0

As a result of an iRC discussion with Mihai, decided we should dump some error 
if the .keys() helper function does not exist/apply for an object

1. Open the test page 
2. Open the web console
3. From the command line, type: 
   var heartObject = $("heart") 
   keys(heartObject)

Actual result:
nothing 

Expected: 
There should be an error, at liest 'undefined'

Notes: 
Object.keys(heartObject) triggers "[]" in the console, so i guess keys() can do that too. You guys decide what to put there, but leaving empty results in not a good option in my opinion.

Comment 1

[Rob Campbell [:rc] (:robcee)]

the example now should be using $("#heart") on everything from fx16 up.

This returns "constructor" as typed above. When I run keys($("#heart")) directly, I got [].

I think we can kill this.