Asp Forum - Re: operator |=

Paul Danese

11/6/2007 12:12:00 PM

You might be thinking about ||=3D
||=3D assigns a value to a variable if the variable is nil

e.g.=20

x =3D 5
x ||=3D 88
x #=3D> 5

y =3D nil
y ||=3D 88
y # =3D> 88

I believe a |=3D b "ORs" the bits in a and b and assigns them to a

-----Original Message-----
From: news [mailto:news@ger.gmane.org] On Behalf Of Fernando Cacciola
Sent: Tuesday, November 06, 2007 6:58 AM
To: ruby-talk ML
Subject: operator |=3D

Hi people,

Did I dream about an opeartor |=3D?

I can't find any reference to it in the online docs, yet I think I've
seen=20
it in some samples.

What does it do?

TIA

--=20
Fernando Cacciola
SciSoft
http://fcacciola....

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2 Answers

Fernando Cacciola

11/6/2007 12:57:00 PM

Paul Danese wrote:
> You might be thinking about ||=

Ha, ya, that one... ;)

Thank you.

> I believe a |= b "ORs" the bits in a and b and assigns them to a

Oh, just like in C.... who would have thought (just kiding:)

Best

Fernando Cacciola
SciSoft
http://fcacciola....

Rick DeNatale

11/6/2007 3:29:00 PM

On 11/6/07, Paul Danese <pdanese@rib-x.com> wrote:
> You might be thinking about ||=
> ||= assigns a value to a variable if the variable is nil

To be precise, it assigns a value to a variable which is either
undefined, nil or false.
--
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denh...

comp.lang.ruby

Re: operator |=

Paul Danese

Fernando Cacciola

Rick DeNatale

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