increment/decrement

[Teodor Carstea]

what is Ruby's style of increment/decrement?

I mean like in C++

someVar++
or someVar--

 

[Paul Smith]

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)

 

[Mike Stok]

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 <[email protected]>
http://www.stok.ca/~mike/

The "`Stok' disclaimers" apply.

 

[Robert Klemme]

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....3e9e57d1?lnk=gst&q=increment#b83161b23e9e57d1

Cheers

robert

 

[Bertram Scharpf]

Hi,

Am Freitag, 04. Dez 2009, 21:34:31 +0900 schrieb Paul Smith:

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