Implicit conversion to boolean in if and while statements

alex23 wuwei23 at gmail.com
Mon Feb 11 03:38:39 CET 2013


On Feb 8, 4:29 pm, Rick Johnson <rantingrickjohn... at gmail.com> wrote:
> That's a strange thing to say when you go on to provide an example that tests the validity of the object "each and every time":

Here's a tip: context is important. I was referring to not having to
*explicitly* test if a label *is defined* in order to be able to use
it, which is something you need to do in other languages, such as
Javascript:

   var func = function() { throw EventException; }
   a = func()
   if ( a == '1') ... // this raises a ReferenceError as 'a' is not
defined
   if ( typeof a !== 'undefined' && a == '1')... // this guards
against the ReferenceError

> And i find it to be incredibly asinine.

I find your smugness to be much the same.

> Consider this:
>     if connect("my:db") as db:
>         <do something>
>
> No need to make a call and then test for the validity of the call when you can do both simultaneously AND intuitively.

No need to learn a language when you can just make crap up and whine
when it doesn't work.

> *school-bell-rings*

You're "schooling" others using a hypothetical variant of an existing
language which you believe should conform to your a priori assumptions
about how such a language should work? You're "schooling" people who
_read the documentation_ when you admit to not doing so yourself?

You're not asinine, you're just an asshole.




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