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Fuzion • Library Modules • base • Sequence • group_by

group_by

Sequence.group_by

group_by
(
K 
type
:
property.equatable,
f Unary K T
)
 => 
container.Map K (Sequence T)
[src]
group the elements of this sequence by a key of type K
using a Mutable_Tree_Map

f determines the key of an element

Type Parameters

K
:
property.equatable
[src]

Arguments

f
 Unary K T
[src]
0.099dev (GIT hash a35e75388cc5c7a861f5c2a3f42d121e3aab582a)
last changed: 2026-11-03