benchmark: refactor for consistent style

Code in benchmark directory sometimes uses `function () {}` for
anonymous callbacks and sometimes uses `() => {}`. Multi-line arrays
sometimes have a trailing comma and sometimes do not. Update to always
use arrow functions for anonymous callbacks and trailing commas for
multiline arrays.

PR-URL: https://github.com/nodejs/node/pull/25944
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/benchmark/string_decoder/string-decoder-create.js b/benchmark/string_decoder/string-decoder-create.js
index 386f99e7c0..fad727222e 100644
--- a/benchmark/string_decoder/string-decoder-create.js
+++ b/benchmark/string_decoder/string-decoder-create.js
@@ -4,7 +4,7 @@ const StringDecoder = require('string_decoder').StringDecoder;
 
 const bench = common.createBenchmark(main, {
   encoding: [
-    'ascii', 'utf8', 'utf-8', 'base64', 'ucs2', 'UTF-8', 'AscII', 'UTF-16LE'
+    'ascii', 'utf8', 'utf-8', 'base64', 'ucs2', 'UTF-8', 'AscII', 'UTF-16LE',
   ],
   n: [25e6]
 });
diff --git a/benchmark/string_decoder/string-decoder.js b/benchmark/string_decoder/string-decoder.js
index 95baa893bb..0e34effbc7 100644
--- a/benchmark/string_decoder/string-decoder.js
+++ b/benchmark/string_decoder/string-decoder.js
@@ -54,7 +54,7 @@ function main({ encoding, inLen, chunkLen, n }) {
       }
       str = Buffer.concat([
         str,
-        buf.slice(start % buf.length, end % buf.length)
+        buf.slice(start % buf.length, end % buf.length),
       ]);
     }
   }