On Jun 14, 2012, at 14:03, "Rick Waldron" <waldron.r...@gmail.com<mailto:waldron.r...@gmail.com>> wrote:
On Thu, Jun 14, 2012 at 11:58 AM, Domenic Denicola <dome...@domenicdenicola.com<mailto:dome...@domenicdenicola.com>> wrote: In our experience writing large apps, the distinction is useful. Undefined means I forgot to do something (e.g. set a property or pass an argument); null means I tried to get something but it didn't exist. null is intentional, its presence is explicit -- doesn't this imply that something _does_ exist? (...and its value is null) eg. https://gist.github.com/2926029 Rick Right, I wasn't exactly clear—I meant more the case of e.g. "nothing exists in the database, so I gave you back a null" or even "there wasn't any error, so I called you back with a null as the first param."
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