«

what is Ruby's style of increment/decrement?

I mean like in C++

someVar++
or someVar--
--
Posted via http://www.ruby-forum.com/.

On Fri, Dec 4, 2009 at 12:22 PM, Teodor Carstea <> wrote:
> what is Ruby's style of increment/decrement?
>
> I mean like in C++
>
> someVar++
> or someVar--

someVar += 1

Or, more likely, work out why you don't really need to increment and
use something else (hint, if you're incrementing an array index,
you're probably doing it wrong)

> --
> Posted via http://www.ruby-forum.com/.
>
>



--
Paul Smith
http://www.nomadicfun.co.uk

On Dec 4, 2009, at 7:22 AM, Teodor Carstea wrote:

> what is Ruby's style of increment/decrement?
>=20
> I mean like in C++
>=20
> someVar++
> or someVar--

Take a look at http://ruby-doc.org/docs/Newcomers/ruby.html#operators =
which includes "To increment a number, simply write x +=3D 1T."

Hope this helps,

Mike

--=20

Mike Stok <>
http://www.stok.ca/~mike/

The "`Stok' disclaimers" apply.

2009/12/4 Mike Stok <>:
>
> On Dec 4, 2009, at 7:22 AM, Teodor Carstea wrote:
>
>> what is Ruby's style of increment/decrement?
>>
>> I mean like in C++
>>
>> someVar++
>> or someVar--
>
> Take a look at http://ruby-doc.org/docs/Newcomers/ruby.html#operators which includes "To increment a number, simply write x += 1T."

Teodor, if you now start wondering why there is no i++ in Ruby please
see the recent thread "Ruby doesn't implement x++ for Fixnum's because
???".

http://groups.google.de/group/comp.l...3161b23e9e57d1

Cheers

robert

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

Hi,

Am Freitag, 04. Dez 2009, 21:34:31 +0900 schrieb Paul Smith:
> On Fri, Dec 4, 2009 at 12:22 PM, Teodor Carstea <> wrote:
> > what is Ruby's style of increment/decrement?
> >
> > I mean like in C++
> >
> > someVar++
> > or someVar--
>
> someVar += 1

You may also say

someVar = someVar.succ

With strings even this works:

str = "A0000"
str.succ!

For iterating use somethig like Fixnum#times or Array#each.

Bertram


--
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de