Elixir tramnsform snippets on my way from Perl to Elixir

transformations.ex

# Perl:

my %map = ( a => 1, b => 2 );
my $fn_transform = sub { shift( @_ ) + 1 };
map {( $_ => $fn_transform->( $map{$_} ) )} keys %map;

# transform all values of a map
map = %{ a: 1, b: 2 }
fn_transform = &( &1 + 1)
Enum.into map, %{},  fn({k, v}) -> {k, fn_transform.(v) } end

# same as
Enum.map( map, fn({k, v}) -> {k, fn_transform.(v) } end ) |> Map.new

# factor-out more
fn_mapper = fn({k, v}) -> {k, fn_transform.(v) } end

Enum.into map, %{}, fn_mapper
Enum.map( map, fn_mapper ) |> Map.new

So, apparently, both Map.into and Enum.map allow to map on values (and keys). Enum.into returns a map