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Re: split and nils?

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From:
yary
Date:
February 6, 2019 21:20
Subject:
Re: split and nils?
Message ID:
CAG2CFAbUHZLMpsWFuait00kAVJOP9fVHDSzAa8E_4_0B1ZVs+g@mail.gmail.com
Leave off the '.kv' to get a Seq (array-like-thing)

> my $letters='abc def g';

abc def g

> $letters.comb().perl

("a", "b", "c", " ", "d", "e", "f", " ", "g").Seq

> ($letters.comb())[0,3,4,6]

(a   d f)

> my @letter_array = $letters.comb()

[a b c   d e f   g]

> @letter_array[1]

b

-y


On Wed, Feb 6, 2019 at 1:02 PM ToddAndMargo via perl6-users <
perl6-users@perl.org> wrote:

> On 2/6/19 12:58 PM, Patrick R. Michaud wrote:
> > On Wed, Feb 06, 2019 at 12:38:01PM -0800, ToddAndMargo via perl6-users
> wrote:
> >> $ p6 'my Str $x="abcd"; for $x.comb.kv -> $i, $j {say "Index <$i> =
> <$j> =
> >> ord <" ~ ord($j) ~ ">";}'
> >>
> >> Index <0> = <a> = ord <97>
> >> Index <1> = <b> = ord <98>
> >> Index <2> = <c> = ord <99>
> >> Index <3> = <d> = ord <100>
> >>
> >> Certainly very practical.  If dealing with large strings, is
> >> it the most efficient?
> >
> > .comb is intended to be more efficient than .split for this particular
> application, yes.
> >
> > "comb" is about obtaining the substrings you're looking for (individual
> characters in this case); "split" is about finding substrings between the
> things you're looking for.
> >
> > Pm
> >
>
> Thank you!
>

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