Thanks Don. If there's no particular reason to use globals, should I use =.
every place in my code?

Cheers,

Andrew Pennebaker
www.yellosoft.us

On Sun, Oct 30, 2011 at 5:03 PM, Don Guinn <[email protected]> wrote:

> =: is a global copula. =. is a local copula within explicit definitions. In
> immediate mode or not enclosed in an explicit definition is the same as =:
> . Need to be aware that if you use "load" that puts the script within an
> explicit definition. So =. produces a local definition that disappears when
> the "load" verb ends.
>
> On Sun, Oct 30, 2011 at 2:37 PM, Andrew Pennebaker <
> [email protected]> wrote:
>
> > What's the difference between =: and =. ?
> >
> > Cheers,
> >
> > Andrew Pennebaker
> > www.yellosoft.us
> >
> > 2011/10/30 Björn Helgason <[email protected]>
> >
> > >   happy=.0
> > >   > happy #  <'clap hands'
> > >
> > >   happy=.1
> > >   > happy #  <'clap hands'
> > > clap hands
> > >
> > >
> > > 2011/10/30 Andrew Pennebaker <[email protected]>
> > >
> > > > J won't let me write if. ... end. by itself; it must be enclosed in a
> > > > function definition. E.g., I'd like to do this:
> > > >
> > > > if. happy do.
> > > >   clapHands
> > > > end.
> > > >
> > > > Rather than:
> > > >
> > > > arewehappy =: monad : 0
> > > >   if. happy do.
> > > >      clapHands
> > > >   end.
> > > > )
> > > >
> > > > arewehappy 0
> > > >
> > > > Can we add the ability to do the former to J?
> > > >
> > > > By the way, what's the preferred notation for long variable and
> > function
> > > > names? camelCase? with_underscores?
> > > >
> > > > Cheers,
> > > >
> > > > Andrew Pennebaker
> > > > www.yellosoft.us
> > > >
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> > >
> > >
> > >
> > > --
> > > Björn Helgason, Verkfræðingur
> > > Fornustekkum II
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> > >
> > >
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> einfaldleikans
> > >
> > > góður kennari getur stigið á tær án þess að glansinn fari af skónum
> > >          /|_      .-----------------------------------.
> > >         ,'  .\  /  | Með léttri lund verður        |
> > >     ,--'    _,'   | Dagurinn í dag                     |
> > >    /       /       | Enn betri en gærdagurinn  |
> > >   (   -.  |        `-----------------------------------'
> > >   |     ) |         (\_ _/)
> > >  (`-.  '--.)       (='.'=)   ♖♘♗♕♔♙
> > >   `. )----'        (")_(") ☃☠
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