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Apply a callback to an array: Difference between revisions
→{{header|Ruby}}: ++ sather
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(→{{header|Ruby}}: ++ sather) |
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To create a new array of each value squared
<lang ruby>[1,2,3,4,5].map{ |i| i**2 }</lang>
=={{header|Sather}}==
<lang sather>class MAIN is
do_something(i:INT):INT is
return i * i;
end;
main is
a:ARRAY{INT} := |1, 2, 3, 4, 5|;
-- we use an anonymous closure to apply our do_something "callback"
a.map(bind(do_something(_)));
loop #OUT + a.elt! + "\n"; end;
end;
end;</lang>
=={{header|Scala}}==
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