benchmark: swap var for let in url benchmarks

In benchmark url directory this changes for loops using var to let
when it applies for consistency

PR-URL: https://github.com/nodejs/node/pull/28867
Reviewed-By: Jan Krems <jan.krems@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/benchmark/url/whatwg-url-idna.js b/benchmark/url/whatwg-url-idna.js
index b67a08da7a..853a19776d 100644
--- a/benchmark/url/whatwg-url-idna.js
+++ b/benchmark/url/whatwg-url-idna.js
@@ -36,7 +36,7 @@ function main({ n, to, domain }) {
   const method = to === 'ascii' ? domainToASCII : domainToUnicode;
 
   bench.start();
-  for (var i = 0; i < n; i++) {
+  for (let i = 0; i < n; i++) {
     method(value);
   }
   bench.end(n);