diff --git a/index.js b/index.js
index e69de29bb..5d18587b2 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,17 @@
+function updateObjectWithKeyAndValue(object, key, value) {
+  var newObject = Object.assign({},object,{[key]: value});
+  return newObject;
+}
+function destructivelyUpdateObjectWithKeyAndValue(object, key, value) {
+  object[key] = value;
+  return object;
+}
+function deleteFromObjectByKey(object, key) {
+  var newObject = Object.assign({},object);
+  delete newObject[key];
+  return newObject;
+}
+function destructivelyDeleteFromObjectByKey(object, key){
+  delete object[key];
+  return object;
+}