From b641ade04970bc685d1608c66369ae4f789d0060 Mon Sep 17 00:00:00 2001
From: francesco <francesco.bagnoli.69@gmail.com>
Date: Fri, 26 Sep 2025 11:10:11 +0200
Subject: [PATCH] perf: fast exit for empty string

Signed-off-by: francesco <francesco.bagnoli.69@gmail.com>
---
 lib/serializer.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/serializer.js b/lib/serializer.js
index d92a4e32..0f4dde76 100644
--- a/lib/serializer.js
+++ b/lib/serializer.js
@@ -89,7 +89,9 @@ module.exports = class Serializer {
 
   asString (str) {
     const len = str.length
-    if (len < 42) {
+    if (len === 0) {
+      return '""'
+    } else if (len < 42) {
       // magically escape strings for json
       // relying on their charCodeAt
       // everything below 32 needs JSON.stringify()