From 7b666a238d6acc66aeb085c0863abd524356548e Mon Sep 17 00:00:00 2001
From: Antti Kupila <akupila@gmail.com>
Date: Thu, 1 Mar 2018 15:48:47 +0100
Subject: [PATCH] Set default value for back overshoot

---
 Libraries/Animated/src/Easing.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/Libraries/Animated/src/Easing.js b/Libraries/Animated/src/Easing.js
index c5e54b24723ee9..f935cdbfc5077d 100644
--- a/Libraries/Animated/src/Easing.js
+++ b/Libraries/Animated/src/Easing.js
@@ -175,10 +175,7 @@ class Easing {
    *
    * - http://tiny.cc/back_default (s = 1.70158, default)
    */
-  static back(s: number): (t: number) => number {
-    if (s === undefined) {
-      s = 1.70158;
-    }
+  static back(s: number = 1.70158): (t: number) => number {
     return t => t * t * ((s + 1) * t - s);
   }