From 3c48c3b5d8d19b29c4e5b0e534d1c10beab1e20f Mon Sep 17 00:00:00 2001
From: Justin Lee <justinlee0022@gmail.com>
Date: Fri, 15 Dec 2017 07:39:39 -0800
Subject: [PATCH] Added compose such that the rightmost function may have any
 arity. Added spread operator to explanation of pipe.

---
 snippets/compose.md | 14 ++++++++++++++
 snippets/pipe.md    |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 snippets/compose.md

diff --git a/snippets/compose.md b/snippets/compose.md
new file mode 100644
index 000000000..90088ebe2
--- /dev/null
+++ b/snippets/compose.md
@@ -0,0 +1,14 @@
+### Compose
+
+Use `Array.reduce()` with the spread operator (`...`) to perform right-to-;eft function composition.
+The last (rightmost) function can accept one or more arguments; the remaining functions must be unary.
+
+```js
+const compose = (...fns) => fns.reduce((f, g) => (...args) => f(g(...args)));
+/*
+const add5 = x => x + 5
+const multiply = (x, y) => x * y
+const multiplyAndAdd5 = compose(add5, multiply)
+multiplyAndAdd5(5, 2) -> 15
+*/
+```
diff --git a/snippets/pipe.md b/snippets/pipe.md
index e5136777b..434b4c0c3 100644
--- a/snippets/pipe.md
+++ b/snippets/pipe.md
@@ -1,6 +1,6 @@
 ### Pipe
 
-Use `Array.reduce()` to perform left-to-right function composition.
+Use `Array.reduce()` with the spread operator (`...`) to perform left-to-right function composition.
 The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
 
 ```js