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How to emulate wc -l in Raku


By : Victor Janin
Date : August 01 2020, 09:00 AM
this one helps. One option that's still likely to be pretty slow compared to perl but worth comparing:
code :
raku -ne '++$ andthen END .say' test.txt
raku -Mfoo -ne '++$ andthen END .say' test.txt


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ionic emulate ios - won't emulate and says no such file or directory


By : ant1
Date : March 29 2020, 07:55 AM
Any of those help Do this:
Update ios-sim package: npm install ios-sim -g Update cordova: npm install -g cordova Remove iOS platform: ionic platform rm ios Add iOS platform: ionic platform add ios

I want to emulate a Samsung Galaxy S10+, but skins don't emulate the behavior


By : Abhiram Choppa
Date : March 29 2020, 07:55 AM
To fix the issue you can do You cannot emulate Samsung devices exactly as they are in their physical form. Emulating the basic architecture and screen size/density is the best you can do. The Android Emulator, which is owned by Google/AOSP, is a separate entity from Samsung. To my knowledge Samsung hasn't released its own system images to the public. https://developer.android.com/studio/run/managing-avds

About Laziness [ RAKU ]


By : user3595764
Date : March 29 2020, 07:55 AM
will be helpful for those in need Although gather/take is designed to be a useful construct for lazy processing, it tells anyone who asks it that it isn't lazy, regardless of whether or not it contains an infinite loop:
code :
say .is-lazy
for (gather { take 42 }),                 # False
    (gather { loop { take 42 } });        # False
say .is-lazy
for (lazy gather { take 42 }),            # True
    (lazy gather { loop { take 42 } });   # True
say .is-lazy with (1 ... Inf)             # True

say without newline in Raku


By : mterrats
Date : March 29 2020, 07:55 AM
With these it helps I want to print the even numbers in a row but I can't. ,
say is basically defined as:
code :
sub say ( +@_ ) {
    for @_ {
        $*OUT.print( $_.gist )
    }

    $*OUT.print( $*OUT.nl-out );
}
say $_;

print $_.gist;
use Terminal::ANSIColor;
# Wanna print even numbers in red
for <1 2 3 4> {
    $_ %% 2 ?? print color('red'), $_, color('reset') !! print $_
}

How to implement around in Raku


By : Seyit Kafkas İlkuçar
Date : March 29 2020, 07:55 AM
will be helpful for those in need In Perl, using Moo, you can implement around subs, which will wrap around other methods in a class. , You can shadow the method with the role and then use callwith:
code :
class Foo {
    method meth { say 2 }
}

my $foo = Foo.new but role :: {
    method meth(|c) { say 1; callwith(|c); say 3 }
};

$foo.meth
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