From 56230911563be75349fd3de52cdb48f48d4fcef5 Mon Sep 17 00:00:00 2001
From: Spartak Belov <job.spartak@gmail.com>
Date: Thu, 18 Mar 2021 17:44:31 +0000
Subject: [PATCH] Done.

---
 index.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/index.js b/index.js
index e69de29bb..cd26025e8 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,19 @@
+function updateObjectWithKeyAndValue(obj, key, value){
+  return Object.assign({}, obj, {[key] : value});
+}
+
+function destructivelyUpdateObjectWithKeyAndValue(obj, key, val){
+  obj[key]=val;
+  return obj;
+}
+
+function deleteFromObjectByKey(obj, key){
+  var newObj = Object.assign({}, obj);
+  delete newObj[key];
+  return newObj;
+}
+
+function destructivelyDeleteFromObjectByKey(obj, key){
+  delete obj[key];
+  return Object.assign({},obj);
+}