benchmark: var to const

PR-URL: https://github.com/nodejs/node/pull/13757
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

3 files changed, 9 insertions, 9 deletions

diff --git a/benchmark/es/destructuring-object-bench.js b/benchmark/es/destructuring-object-bench.js
index a3277aa6bf..3edfa6d60b 100644
--- a/benchmark/es/destructuring-object-bench.js
+++ b/benchmark/es/destructuring-object-bench.js
@@ -9,13 +9,13 @@ const bench = common.createBenchmark(main, {
 
 function runNormal(n) {
   var i = 0;
-  var o = { x: 0, y: 1 };
+  const o = { x: 0, y: 1 };
   bench.start();
   for (; i < n; i++) {
     /* eslint-disable no-unused-vars */
-    var x = o.x;
-    var y = o.y;
-    var r = o.r || 2;
+    const x = o.x;
+    const y = o.y;
+    const r = o.r || 2;
     /* eslint-enable no-unused-vars */
   }
   bench.end(n / 1e6);
@@ -23,11 +23,11 @@ function runNormal(n) {
 
 function runDestructured(n) {
   var i = 0;
-  var o = { x: 0, y: 1 };
+  const o = { x: 0, y: 1 };
   bench.start();
   for (; i < n; i++) {
     /* eslint-disable no-unused-vars */
-    var { x, y, r = 2 } = o;
+    const { x, y, r = 2 } = o;
     /* eslint-enable no-unused-vars */
   }
   bench.end(n / 1e6);
diff --git a/benchmark/es/foreach-bench.js b/benchmark/es/foreach-bench.js
index fea5318bc6..26c741b706 100644
--- a/benchmark/es/foreach-bench.js
+++ b/benchmark/es/foreach-bench.js
@@ -14,7 +14,7 @@ function useFor(n, items, count) {
   for (i = 0; i < n; i++) {
     for (j = 0; j < count; j++) {
       /* eslint-disable no-unused-vars */
-      var item = items[j];
+      const item = items[j];
       /* esline-enable no-unused-vars */
     }
   }
diff --git a/benchmark/es/restparams-bench.js b/benchmark/es/restparams-bench.js
index f5c49dd969..d893af48f4 100644
--- a/benchmark/es/restparams-bench.js
+++ b/benchmark/es/restparams-bench.js
@@ -9,8 +9,8 @@ const bench = common.createBenchmark(main, {
 });
 
 function copyArguments() {
-  var len = arguments.length;
-  var args = new Array(len);
+  const len = arguments.length;
+  const args = new Array(len);
   for (var i = 0; i < len; i++)
     args[i] = arguments[i];
   assert.strictEqual(args[0], 1);