diff --git a/index.js b/index.js
index fccc9e603..5debae1b4 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,32 @@
 // Write your solution in this file!
+const employee = {};
+
+function updateEmployeeWithKeyAndValue(obj, key, value) {
+  const newObj = {...obj};
+
+  newObj[key] = value;
+
+  return newObj;
+};
+
+function destructivelyUpdateEmployeeWithKeyAndValue(obj, key, value) {
+  const newObj = obj;
+
+  newObj[key] = value;
+
+  return newObj;
+};
+
+function deleteFromEmployeeByKey(employee, obj, key) {
+  const newObj = {...obj};
+
+  delete newObj.key;
+
+  return newObj;
+};
+
+function destructivelyDeleteFromEmployeeByKey(employee, key) {
+  delete employee[key];
+
+  return employee;
+};