From b64305b25c9d7a56ed1d6cc8871746adb058a899 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=B4me=20Benoit?= <jerome.benoit@sap.com>
Date: Tue, 25 Oct 2022 12:02:20 +0200
Subject: [PATCH] Add empty object helper implementations benchmark
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Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>
---
 empty-object.js | 38 ++++++++++++++++++++++++++++++++++++++
 package.json    |  1 +
 2 files changed, 39 insertions(+)
 create mode 100644 empty-object.js

diff --git a/empty-object.js b/empty-object.js
new file mode 100644
index 0000000..17be7fe
--- /dev/null
+++ b/empty-object.js
@@ -0,0 +1,38 @@
+const Benchmark = require('benny')
+
+const emptyLiteral = {}
+
+Benchmark.suite(
+  'Empty object',
+  Benchmark.add('Reflect keys', (obj = emptyLiteral) => {
+    return Reflect.ownKeys(obj).length === 0 && obj.constructor === Object
+  }),
+  Benchmark.add('Keys iteration ', (obj = emptyLiteral) => {
+    if (obj.constructor !== Object) return false
+    // Iterates over the keys of an object, if
+    // any exist, return false.
+    // eslint-disable-next-line no-unreachable-loop
+    for (const _ in obj) return false
+    return true
+  }),
+  Benchmark.add('Object keys', (obj = emptyLiteral) => {
+    return obj.constructor === Object && !Object.keys(obj).length
+  }),
+  Benchmark.cycle(),
+  Benchmark.complete(),
+  Benchmark.save({
+    file: 'empty-object',
+    format: 'json',
+    details: true
+  }),
+  Benchmark.save({
+    file: 'empty-object',
+    format: 'chart.html',
+    details: true
+  }),
+  Benchmark.save({
+    file: 'empty-object',
+    format: 'table.html',
+    details: true
+  })
+)
diff --git a/package.json b/package.json
index f402a27..74f6bcd 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "prepare": "node prepare.js",
     "benchmark:busy-wait": "node busy-wait.js",
     "benchmark:empty-array": "node empty-array.js",
+    "benchmark:empty-object": "node empty-object.js",
     "benchmark:quick-select": "node quick-select.js",
     "benchmark:max": "node max.js",
     "benchmark:promise-handling": "node promise-handling.js",
-- 
2.34.1