Re: Re: Why is 'else' demanded?

Maybe you're right. Perhaps I devoted too much into defensive programming. =
If no nested conditional statements, if else combination is satisfactory.=
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ZhangHong-liang.=0D
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From: Andrew Luo=0D
Date: 2013-06-14 11:39=0D
To: [email protected]=0D
Subject: Re: Re: [refactoring] Why is 'else' demanded?=0D
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You don'tneed else, =0D
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if evaluation=0D
...=0D
else=0D
...=0D
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is equivalent to=0D
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istrue =3D evaluation=0D
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if istrue=0D
....=0D
if !istrue=0D
....=0D
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but it's likely that this idiom was so common that people found it helpful =
to have else to make things more succinct.  Don't use it if you don't like =
it, but your code may become more awkward for others to read.=0D
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- Andrew=0D
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________________________________=0D
From: zhanghongliang <[email protected]>=0D
To: refactoring <[email protected]> =0D
Sent: Wednesday, June 12, 2013 8:39 PM=0D
Subject: Re: Re: [refactoring] Why is 'else' demanded?=0D
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  =0D
May the explanation is forceful as below: =0D
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refactoring starts with "structured programming" (the =0D
paradigm shift in the 1980s where "if - go to" statements were replaced =0D
by "while", "repeat" and "if-then-else" statements in a lot of =0D
languages). The return statement is not part of a structured program. =0D
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the above drawn from the reply mail by Willem Bogaerts<[email protected]> =0D
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Best regards, =0D
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trol, No.11, CaiHeFang Road, Beijing , China) =0D
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From: Carfield Yim =0D
Date: 2013-06-10 23:34 =0D
To: refactoring =0D
Subject: Re: [refactoring] Why is 'else' demanded? =0D
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I think one reason is C have if-else and quite a number of languages base =
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on C. =0D
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On Mon, Jun 10, 2013 at 3:02 AM, =E5=BC=A0=E7=BA=A2=E4=BA=AE <zhanghonglian=
[email protected]> wrote: =0D
=0D
> I have a problem. Why is there always else key word in a language? Since =
I =0D
> can use return to stop the process of a flow. I hate to see else statemen=
t =0D
> and I see I can never use else statement that only increase the complexit=
y =0D
> of program. =0D
> =0D
> A if statement stands for a condition that should be unique, and it shoul=
d =0D
> has no relation with anything else. So a language does not need else and =
it =0D
> should not appear in a program. =0D
> =0D
> Sent from my iPad =0D
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> ------------------------------------ =0D
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> Yahoo! Groups Links =0D
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