or simply if (!Obj.sortby) Obj.sortby = 'time'; it's a bit more efficient. All of undefined, null, 0 or "" will evaluate to false, there's no need to check for each of them.
Anyway, Alexandre, the ternary you posted should also work, there is probably something else wrong in your code. - ricardo On Feb 18, 3:52 pm, "Josh Nathanson" <joshnathan...@gmail.com> wrote: > I think this might work, give it a try: > > Obj.sortby = Obj.sortby || 'time'; > > -- Josh > > -----Original Message----- > From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On > Behalf Of Alexandre Plennevaux > Sent: Wednesday, February 18, 2009 9:07 AM > To: Jquery-en > Subject: [jQuery] default value of an object's property > > hi there, > > a quick question: i'm using an object to pass a series of variables. > Sometimes, i test for a specific property, which might not exist. > I can't seem to find the right way, i tried > > Obj.sortby = (typeof Obj.sortby == 'undefined' || Obj.sortby=='' > ||Obj.sortby == null) ? 'time' : Obj.sortby; > > but everytime that property "sortby" hasn't been set, firebug returns > it as "null" > > can you clear that up for me? > > Thanks a lot! > > Alexandre
