http: improve writeEarlyHints by avoiding for-of loop

PR-URL: #59958 Refs: https://github.com/nodejs/node/blob/main/doc/contributing/primordials.md#unsafe-array-iteration Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: haramj

lib/_http_server.js

@@ -330,7 +330,9 @@ ServerResponse.prototype.writeEarlyHints = function writeEarlyHints(hints, cb) {
 
  head += 'Link: ' + link + '\r\n';
 
- for (const key of ObjectKeys(hints)) {
+ const keys = ObjectKeys(hints);
+ for (let i = 0; i < keys.length; i++) {
+ const key = keys[i];
  if (key !== 'link') {
  head += key + ': ' + hints[key] + '\r\n';
  }