diff --git a/index.js b/index.js
index e69de29bb..d1a104471 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,18 @@
+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 object = Object.assign({}, object, key);
+  return delete object.key
+}
+
+function destructivelyDeleteFromObjectByKey(object, key) {
+ object[key] = {};
+ return delete object.key
+}