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Definitions:

literal phrase ⇒ token, literal phrase ⇒ token, expression phrase ⇒ map, block phrase ⇒ []→⊤
Source: /avail/Avail/Foundation/Maps
Categories: Loops, Collections, Maps
Iteratively apply predicate to each binding of aMap, in no particular order, collecting those bindings for which predicate answers true into a new map. Answer the new map.
Position Name Type Description
Parameters
1 keyPhrase literal phrase ⇒ token A literal phrase holding a synthetic literal token whose value is the name of the map key loop variable. The generated loop variable is given the strongest possible type based on the map key type of aMap.
2 valuePhrase literal phrase ⇒ token A literal phrase holding a synthetic literal token whose value is the name of the map value loop index variable. The generated loop variable is given the strongest possible type based on the map value type of aMap.
3 aMap expression phrase ⇒ map An expression phrase that yields the map to iterate over
4 predicate block phrase ⇒ []→⊤ A zero-argument block phrase that represents the body of the loop.
Returns send phrase ⇒ ⊤