On Mon, 31 Jul 2017, Werner Pamler wrote:
Agreed. This is the same situation as with string-to-number conversion:
StrToFloat fires an exception if the string is not a valid float, but
there's also a "TryStrToFloat" which by-passes the exception and just
returns a false in case of an error. Why not having something like a
"TryGet" which returns true only if the file is successfully downloaded
and false in all other cases (HTTP error, or no connection)?
Because that would require to completely change the interface and possibly
implementation of underlying/intermediate methods, which rely now on an
exception being thrown.
It's of course possibly to make a TryGet which calls get and catches the
exception,
but you can make such a function yourself, I really don't see the value:
in my experience, you usually want to know why the call failed, and then the
exception is useful. A boolean value of 'false' is not very descriptive.
Michael.
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