On Thursday, 20 August 2015 at 19:41:44 UTC, Jonathan M Davis
wrote:
On Thursday, 20 August 2015 at 17:50:11 UTC, Steven
Schveighoffer wrote:
if(arr != null)
Definitely don't do that. IMHO, "== null and "!= null" should
be illegal. If you really want to check for null, then you need
to use "is null" or "!is null", whereas if you want to check
that an array is empty, check its length or call empty. By
using "== null" or "!= null", you tend to give the false
impression that you're checking whether the object or array is
null - which is not what you're actually doing.
I disagree. `is null` is the one that should be illegal. `is` is
supposed to do a bitwise comparison, but `null` is usually just a
pointer/reference, while a slice consists of both a reference and
a length. Which of those are compared?
