diff --git a/index.js b/index.js
index e69de29bb2..e02d598b55 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,23 @@
+var recipes = {};
+
+function updateObjectWithKeyAndValue(object, key, value){
+  var newObj = Object.assign({}, object);
+  newObj[key]=value;
+  return newObj;
+}
+
+function destructivelyUpdateObjectWithKeyAndValue(object, key, value){
+  object[key]=value;
+  return object;
+}
+
+function deleteFromObjectByKey(object, key){
+  var newObj = Object.assign({}, object);
+  delete newObj[key];
+  return newObj;
+}
+
+function destructivelyDeleteFromObjectByKey(object, key){
+  delete object[key]
+  return object;
+}
\ No newline at end of file