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Idiom # 13: Iterate over map keys and values

See programming-idioms.org:

Code

mymap.items ! t -> say "{t.0} => {t.1}"
# NYI: with more syntactic sugar, this should become
#
# mymap.items ! k,v -> say "$k => $v"
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Running Example

mymap := container.ordered_map ["one", "two"] [1, 2]
mymap.items ! t -> say "{t.0} => {t.1}"
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last changed: 2025-05-13