From 5253091624ec2459473812d60dfb946af17fdf82 Mon Sep 17 00:00:00 2001
From: Matej Focko <mfocko@redhat.com>
Date: Sat, 3 Jun 2023 23:43:12 +0200
Subject: [PATCH] =?UTF-8?q?problems(js):=20add=20=E2=80=9C2700.=20Differen?=
 =?UTF-8?q?ces=20Between=20Two=20Objects=E2=80=9D?=
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Signed-off-by: Matej Focko <mfocko@redhat.com>
---
 .../js/differences-between-two-objects.js     | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 problems/js/differences-between-two-objects.js

diff --git a/problems/js/differences-between-two-objects.js b/problems/js/differences-between-two-objects.js
new file mode 100644
index 0000000..4515a10
--- /dev/null
+++ b/problems/js/differences-between-two-objects.js
@@ -0,0 +1,29 @@
+/**
+ * @param {object} obj1
+ * @param {object} obj2
+ * @return {object}
+ */
+function objDiff(obj1, obj2) {
+    if (obj1 === obj2) {
+        return {};
+    }
+
+    if (
+        obj1 === null || obj2 === null
+        || typeof obj1 !== 'object' || typeof obj2 !== 'object'
+        || Array.isArray(obj1) !== Array.isArray(obj2)
+    ) {
+        return [obj1, obj2];
+    }
+
+    let result = {};
+    for (let key in obj1) {
+        if (key in obj2) {
+            let diff = objDiff(obj1[key], obj2[key]);
+            if (Object.keys(diff).length) {
+                result[key] = diff;
+            }
+        }
+    }
+    return result;
+};