From: Feross Aboukhadijeh <feross@feross.org>
Date: Thu, 11 Feb 2021 03:32:36 +0000 (-0800)
Subject: small perf improvement
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=57caad4450d241207066ca3832fb8e9095ad402f;p=buffer.git

small perf improvement
---

diff --git a/index.js b/index.js
index 7a0e9c2..cc19926 100644
--- a/index.js
+++ b/index.js
@@ -410,7 +410,9 @@ Buffer.concat = function concat (list, length) {
     let buf = list[i]
     if (isInstance(buf, Uint8Array)) {
       if (pos + buf.length > buffer.length) {
-        if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf)
+        if (!Buffer.isBuffer(buf)) {
+          buf = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength)
+        }
         buf.copy(buffer, pos)
       } else {
         Uint8Array.prototype.set.call(