Programming-Idioms

Idiom

# 335 List to map

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Create the map m containing all the elements e of the list a, using as key the field e.id.

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final m = {
  for (final e in a) e.id: e,
};

m := make(map[K]V, len(a))
for _, e := range a {
	m[e.id] = e
}

local m={}
for _,e in ipairs(a) do
 m[e.id]=e
end

foreach my $e (@a) {
    $m{$e->id) = $e;
}

m = {e.id:e for e in a}

m = a.group_by(&:id)