.constructor == Function is not enough

[sa.cesare@…]

constructor sometimes represented as {...},so compare it with "Function" is not enough.Something as simple as typeof(data)=="function" will be suffice.Look at $.get() function for example. I'm using 1.0.1 with IE7 on Vista RC1.By the way,why you're using sometimes typeof() and sometimes .constructor,I suggest to use only one of these for convenience;-)

[joern]

".constructor ==" occurs 17 times in the jQuery core, ".constructor == Function" 4 times. I'm not sure in which case this is a problem, but if there is any, it shouldn't be too hard to fix.

[sa.cesare@…]

Please,fix it if you can-it's not working in .htc context.

[dave.methvin]

This explains it a bit: ​http://blogs.msdn.com/ericlippert/archive/2004/02/04/67525.aspx

The .htc's scripting engine isn't the same as the main page's (and jQuery) scripting engine. Since .constructor basically uses the engines address of the Function object and they are two different engines, the two are not equal. Instead, use typeof(x)=="function" as the original poster said.

[joern]

Dave, if I get that right, the blog entry you link to, actually says that the instanceof operator won't work in this case. Anyway, can someone provide a test case for this? That would be a great help to solve this.

[joern]

Fixed in SVN (rev. 341).