Apply a callback to an array: Difference between revisions

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<lang rebol>arr: [1 2 3 4 5]
<lang rebol>arr: [1 2 3 4 5]


print map arr => [2*]</lang>
print map arr => [2*&]</lang>
{{out}}
{{out}}
Retrieved from "https://rosettacode.org/wiki/Apply_a_callback_to_an_array"