From 60431ffa91f4cdcf86d41aaae57c9da3db9bdb9d Mon Sep 17 00:00:00 2001
From: jbranchaud <jbranchaud@gmail.com>
Date: Fri, 31 Mar 2017 21:58:42 -0500
Subject: [PATCH] Add Defining Multiple Clauses In An Anonymous Function as an
 elixir til

---
 README.md                                     |  3 +-
 ...ltiple-clauses-in-an-anonymous-function.md | 29 +++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 elixir/defining-multiple-clauses-in-an-anonymous-function.md

diff --git a/README.md b/README.md
index b954415..ab3d0d7 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ variety of languages and technologies. These are things that don't really
 warrant a full blog post. These are mostly things I learn by pairing with
 smart people at [Hashrocket](http://hashrocket.com/).
 
-_518 TILs and counting..._
+_519 TILs and counting..._
 
 ---
 
@@ -98,6 +98,7 @@ _518 TILs and counting..._
 - [Create A Date With The Date Sigil](elixir/create-a-date-with-the-date-sigil.md)
 - [Creating A PID](elixir/creating-a-pid.md)
 - [Creating Indexes With Ecto](elixir/creating-indexes-with-ecto.md)
+- [Defining Multiple Clauses In An Anonymous Function](elixir/defining-multiple-clauses-in-an-anonymous-function.md)
 - [Determine The Latest Release Of A Hex Package](elixir/determine-the-latest-release-of-a-hex-package.md)
 - [Do You Have The Time?](elixir/do-you-have-the-time.md)
 - [Do You Have The Time? - Part 2](elixir/do-you-have-the-time-part-2.md)
diff --git a/elixir/defining-multiple-clauses-in-an-anonymous-function.md b/elixir/defining-multiple-clauses-in-an-anonymous-function.md
new file mode 100644
index 0000000..c99a36c
--- /dev/null
+++ b/elixir/defining-multiple-clauses-in-an-anonymous-function.md
@@ -0,0 +1,29 @@
+# Defining Multiple Clauses In An Anonymous Function
+
+Anonymous functions often take the approach of doing a single thing with the
+inputs, regardless of their shape or values. There is no need to limit
+ourselves though. The same pattern matching that we use all over our Elixir
+programs can be utilized to define multiple clauses in an anonymous function
+as well.
+
+Consider the following example:
+
+```elixir
+iex> my_function = fn
+  {:ok, x} -> "Everything is ok: #{x}"
+  {:error, x} -> "There was an error: #{x}"
+end
+#Function<6.52032458/1 in :erl_eval.expr/5>
+```
+
+We can then invoke our anonymous function using the bound variable to see
+what results we get with different kinds of inputs.
+
+```
+iex> my_function.({:ok, 123})
+"Everything is ok: 123"
+iex> my_function.({:error, "be warned"})
+"There was an error: be warned"
+```
+
+[source](http://stackoverflow.com/a/18023790/535590)