[List] by: [List]. | Manual
[List] by: [List].
Combines the first list with the second one, thus creating
a map. The keys of the newly generated map will be provided by the
first list while the values are extracted from the second one.
In the example we derive a temperature map from a pair of lists
(cities and temperatures).
☞ city := List ← 'London' ; 'Paris' ; 'Berlin'. ☞ temperature := List ← '15' ; '16' ; '15'. ☞ weather := temperature by: city.
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