From 32d65c001d6d3e723e9dc2bd9584a685ff093e5b Mon Sep 17 00:00:00 2001
From: kylo5aby <109658203+zhenweijin@users.noreply.github.com>
Date: Fri, 10 Nov 2023 17:45:14 +0800
Subject: [PATCH] buffer: improve Buffer.equals performance

PR-URL: https://github.com/nodejs/node/pull/50621
Refs: https://github.com/nodejs/node/issues/50620
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
---
 lib/buffer.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/buffer.js b/lib/buffer.js
index ee30c69cc9611c..ee8b87a191ddbd 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -860,11 +860,11 @@ Buffer.prototype.equals = function equals(otherBuffer) {
 
   if (this === otherBuffer)
     return true;
-
-  if (this.byteLength !== otherBuffer.byteLength)
+  const len = TypedArrayPrototypeGetByteLength(this);
+  if (len !== TypedArrayPrototypeGetByteLength(otherBuffer))
     return false;
 
-  return this.byteLength === 0 || _compare(this, otherBuffer) === 0;
+  return len === 0 || _compare(this, otherBuffer) === 0;
 };
 
 let INSPECT_MAX_BYTES = 50;