buffer: optimize for common encodings

ronag · ronag · commit 4629e8ef0b86 · 2024-08-11T18:16:42.000+02:00
diff --git a/lib/buffer.js b/lib/buffer.js
@@ -1108,7 +1108,7 @@ Buffer.prototype.write = function write(string, offset, length, encoding) {
     }
   }
 
-  if (!encoding)
+  if (!encoding || encoding === 'utf8' || encoding === 'ascii')
     return this.utf8Write(string, offset, length);
 
   const ops = getEncodingOps(encoding);

Original file line number	Diff line number	Diff line change
`@@ -1108,7 +1108,7 @@ Buffer.prototype.write = function write(string, offset, length, encoding) {`
`1108`	`1108`	`}`
`1109`	`1109`	`}`
`1110`	`1110`
`1111`		`- if (!encoding)`
	`1111`	`+ if (!encoding \|\| encoding === 'utf8' \|\| encoding === 'ascii')`
`1112`	`1112`	`return this.utf8Write(string, offset, length);`
`1113`	`1113`
`1114`	`1114`	`const ops = getEncodingOps(encoding);`