buffer: initialize TextDecoder once on blob.text()

PR-URL: #44787 Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Antoine du Hamel <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]>
nodejs · Oct 11, 2022 · 725be0e · 725be0e
1 parent 281fd7a
commit 725be0e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/internal/blob.js b/lib/internal/blob.js
@@ -78,6 +78,7 @@ let ReadableStream;
 let URL;
 
 const enc = new TextEncoder();
+let dec;
 
 // Yes, lazy loading is annoying but because of circular
 // references between the url, internal/blob, and buffer
@@ -311,7 +312,8 @@ class Blob {
     if (!isBlob(this))
       throw new ERR_INVALID_THIS('Blob');
 
-    const dec = new TextDecoder();
+    dec ??= new TextDecoder();
+
     return dec.decode(await this.arrayBuffer());
   }