From 3d95212b1d31c61ca010ad17fa09ac80ff1323a0 Mon Sep 17 00:00:00 2001
From: Alexey <peretsmobil@gmail.com>
Date: Thu, 6 Aug 2020 18:04:08 +0300
Subject: [PATCH] findIndex optimization

---
 src/merkleTree.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/merkleTree.js b/src/merkleTree.js
index e493ba2..ba68d17 100644
--- a/src/merkleTree.js
+++ b/src/merkleTree.js
@@ -139,8 +139,7 @@ class MerkleTree {
    */
   indexOf(element, comparator) {
     if (comparator) {
-      const result = this._layers[0].findIndex((el) => comparator(element, el))
-      return result === undefined ? -1 : result
+      return this._layers[0].findIndex((el) => comparator(element, el))
     } else {
       return this._layers[0].indexOf(element)
     }