Apply a callback to an array: Difference between revisions
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Underscore (talk | contribs) (Added Perl 6.) |
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# filter an array |
# filter an array |
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my @e = grep { $_ % 2 == 0 } @a; # @e is now (2, 4)</lang> |
my @e = grep { $_ % 2 == 0 } @a; # @e is now (2, 4)</lang> |
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=={{header|Perl 6}}== |
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{{works with|Rakudo|#21 "Seattle"}} |
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<lang perl6>my $function = { 2*$^x + 3 }; |
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my @array = 1 .. 5; |
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.say for map $function, @array; |
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.say for @array.map($function); |
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for @array { |
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say $function($_); |
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}</lang> |
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=={{header|PHP}}== |
=={{header|PHP}}== |
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