From 4dd8b2b4353626f9c997905fcc9f4824558c1438 Mon Sep 17 00:00:00 2001
From: EdamAmex <121654029+EdamAme-x@users.noreply.github.com>
Date: Thu, 31 Oct 2024 15:55:49 +0900
Subject: [PATCH] perf(context): improve performance of context (setHeaders)
 (#3592)

* perf(context): improve performance of context (newResponse, setHeaders)

* Revert context.ts
---
 src/context.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/context.ts b/src/context.ts
index 7acab14f..a23942e0 100644
--- a/src/context.ts
+++ b/src/context.ts
@@ -266,7 +266,10 @@ export const TEXT_PLAIN = 'text/plain; charset=UTF-8'
  * @returns The updated Headers object.
  */
 const setHeaders = (headers: Headers, map: Record<string, string> = {}) => {
-  Object.entries(map).forEach(([key, value]) => headers.set(key, value))
+  for (let i = 0, keys = Object.keys(map), len = keys.length; i < len; i++) {
+    const key = keys[i]
+    headers.set(key, map[key])
+  }
   return headers
 }