buffer: optimize for common encodings

PR-URL: nodejs#54319 Reviewed-By: Yagiz Nizipli <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Bryan English <[email protected]>
dnalborczyk · Aug 13, 2024 · b00102e · b00102e
1 parent d0f5943
commit b00102e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/buffer.js b/lib/buffer.js
@@ -1108,8 +1108,10 @@ Buffer.prototype.write = function write(string, offset, length, encoding) {
     }
   }
 
-  if (!encoding)
+  if (!encoding || encoding === 'utf8')
     return this.utf8Write(string, offset, length);
+  if (encoding === 'ascii')
+    return this.asciiWrite(string, offset, length);
 
   const ops = getEncodingOps(encoding);
   if (ops === undefined)