diff --git a/index.js b/index.js
index e69de29bb..1fac7f180 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,16 @@
+function updateObjectWithKeyAndValue(object, key, value){
+  return Object.assign({}, object, { [key]:value });
+}
+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;
+}
\ No newline at end of file