26442 2014-07-28 13:35:44 +0000 Clarify if TextTrackCueList should be able to be converted to Array 2014-07-28 15:13:27 +0000 1 1 1 Unclassified HTML WG HTML5 spec unspecified All All RESOLVED INVALID P2 normal --- 1 rick.eyre dave.null bzbarsky mike public-html-admin public-html-wg-issue-tracking rick.eyre public-html-bugzilla oldest_to_newest 109365 0 rick.eyre 2014-07-28 13:35:44 +0000 Should the code, `Array.prototype.slice.call(TTObj, 0)`, be able to convert either TextTrackLists or TextTrackCueLists to arrays? Currently this works on Chrome, but not on Firefox. If so, can there be some clarification added to the spec on whether or not this should work. 109366 1 bzbarsky 2014-07-28 13:47:23 +0000 > Currently this works on Chrome, but not on Firefox. It seems to work just fine in Firefox, as expected. Why do you think it doesn't work? 109371 2 rick.eyre 2014-07-28 15:01:32 +0000 (In reply to Boris Zbarsky from comment #1) > It seems to work just fine in Firefox, as expected. Why do you think it > doesn't work? Yeah, you're right Boris... It seems like I've been testing this wrong. I didn't understand the issue clearly. Should we still add clarification to the spec around this? I'm not sure what objects count as `able to be converted to an array`, that's kind of vague to me, unless I'm missing something. It's also unclear to me that TextTrack(Cue)Lists should be able to do this. 109373 3 bzbarsky 2014-07-28 15:08:24 +0000 > I'm not sure what objects count as `able to be converted to an array` See the spec for Array.prototype.slice at http://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.slice Basically, as long as it has a "length" property and then has numbered properties from 0 to length-1, slice() will produce an array from it. That's obviously true for these objects, given their .length and indexed getter. 109376 4 rick.eyre 2014-07-28 15:13:27 +0000 (In reply to Boris Zbarsky from comment #3) > See the spec for Array.prototype.slice at > http://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype. > slice > > Basically, as long as it has a "length" property and then has numbered > properties from 0 to length-1, slice() will produce an array from it. > > That's obviously true for these objects, given their .length and indexed > getter. Okay, that makes sense. That's why it just works. Thanks! Closing this as invalid.