Explain for loop :
for a for {key, %{metas: metas}} <- presences, into: %{} do
what does into:
do?
as explained by @kartheek - from elixir-lang
must remember : A comprehension is made of three parts: generators, filters, and collectables.
for a for {key, %{metas: metas}} <- presences, into: %{} do
what does into:
do?
as explained by @kartheek - from elixir-lang
must remember : A comprehension is made of three parts: generators, filters, and collectables.