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| -rw-r--r-- | elixir.html.markdown | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/elixir.html.markdown b/elixir.html.markdown index 9fdf37e9..60f0b01c 100644 --- a/elixir.html.markdown +++ b/elixir.html.markdown @@ -369,6 +369,13 @@ spawn(f) #=> #PID<0.40.0> # messages to the process. To do message passing we use the `send` operator. # For all of this to be useful we need to be able to receive messages. This is # achieved with the `receive` mechanism: + +# The `receive do` block is used to listen for messages and process +# them when they are received. A `receive do` block will only +# process one received message. In order to process multiple +# messages, a function with a `receive do` block must recursively +# call itself to get into the `receive do` block again. + defmodule Geometry do def area_loop do receive do |