chore: only use the regular expression for shorter input. The overhea…

…d is otherwise too much. (#691)
fastify · Mar 12, 2024 · d154bf5 · d154bf5
1 parent dfb627e
commit d154bf5
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/serializer.js b/lib/serializer.js
@@ -101,7 +101,8 @@ module.exports = class Serializer {
   asString (str) {
     if (str.length < 42) {
       return this.asStringSmall(str)
-    } else if (STR_ESCAPE.test(str) === false) {
+    } else if (str.length < 5000 && STR_ESCAPE.test(str) === false) {
+      // Only use the regular expression for shorter input. The overhead is otherwise too much.
       return '"' + str + '"'
     } else {
       return JSON.stringify(str)