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-rw-r--r--elixir.html.markdown7
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