diff --git a/04week/loop.js b/04week/loop.js
index e69de29bb..c6deee023 100644
--- a/04week/loop.js
+++ b/04week/loop.js
@@ -0,0 +1,61 @@
+'use strict';
+
+// Create a new file called loops.js in the /04week folder of your workbook.
+// Complete each of the following exercises.
+// for loop
+
+// Use a for loop to console.log each item in the array carsInReverse.
+const carsInReverse = ['Ford', 'Chevy', 'Tesla', 'Nissan', 'Toyota'];
+for (i = 0; i < carsInReverse.length; i++) {
+  console.log(carsInReverse[i]);
+}
+
+// Create an object (an array with keys and values) called persons with the following data:
+// firstName: "Jane"
+// lastName: "Doe"
+// birthDate: "Jan 5, 1925"
+// gender: "female"
+const persons = {
+  firstName: "Jane",
+  lastName: "Doe",
+  birthDate: "Jan 5, 1925",
+  gender: "female"
+};
+
+// Use a for...in loop to console.log each key.
+for (const keys in persons) {
+  console.log(Object.keys(persons));
+}
+
+// Then use a for...in loop and if state to console.log the value associated with the key birthDate.
+for (const keys in persons) {
+  if (keys === 'birthDate') {
+    console.log(persons[keys]);
+  }
+}
+
+// Use a while loop to console log numbers 1 to 1000
+let num = 1;
+while(num <= 1000) {
+  console.log(num);
+  num++;
+}
+
+// Use a do...while loop to console.log the numbers from 1 to 1000.
+do {
+  console.log(num);
+  num++;
+}
+while(num <= 1000);
+
+// When is a for loop better than a while loop?
+  // A forLoop is better when you know the amount of loops you need to do. When you know the cap.
+
+// How is the readability of the code affected?
+  // A while loop can break easier because of the open ended autonomy. The for loop has a set limit which can be easier to control.
+
+// What is the difference between a for loop and a for...in loop?
+  // for in loops are used mostly for objects
+
+// What is the difference between a while loop and a do...while loop?
+  // A while loop goes until something is the argument is false and a do while goes while the condition is true.