Re: Why is 'else' demanded?

Sometimes, you want to continue with the next piece of logic after either
condition in the if ... else ..., but a return would skip the remainder of
the function.

Do you also object to case statements, since we can always accomplish the
same logic with just ifs and returns?

If the criteria for a language is that there always be exactly one way to
express anything, then we would end up with a language in which it is
difficult to express many common constructs.  We might end up writing
programs using turing machines or assembly language.

That said, one of my projects over the last several years has utilized a
language with no "else": Prolog.  I do not miss it at all in Prolog.

On Sun, Jun 9, 2013 at 12:02 PM, =E5=BC=A0=E7=BA=A2=E4=BA=AE <zhanghonglian=
[email protected]> wrote:

> **
>
>
> I have a problem. Why is there always else key word in a language? Since =
I
> can use return to stop the process of a flow. I hate to see else statemen=
t
> and I see I can never use else statement that only increase the complexit=
y
> of program.
>
> A if statement stands for a condition that should be unique, and it shoul=
d
> has no relation with anything else. So a language does not need else and =
it
> should not appear in a program.
>
> Sent from my iPad
>=20=20
>


[Non-text portions of this message have been removed]



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