diff --git a/04week/loop.js b/04week/loop.js
index e69de29bb..043576acd 100644
--- a/04week/loop.js
+++ b/04week/loop.js
@@ -0,0 +1,51 @@
+'use strict'
+//Create a for loop to console.log each item in the array carsInReverse//
+const carsInReverse = ['Honda', 'Audi', 'Porsch', 'Chevy', 'Mazda', 'BMW', 'Toyota', 'Ford'];
+const i = 0;
+const len = carsInReverse.length;
+for (; i < len;) {
+  console.log(carsInReverse.len);
+}
+//For...In loop... Create an object (an array with keys and values) called persons with the following data:
+//firstName:"Jane",lastName:"Doe",birthDate:"Jan 5,1925"//
+//Use a for loop to console.log each key//
+const persons = {
+  fname: "Jane",
+  lname: "Doe",
+  bdate: "Jan 5, 1925",
+  gender: "female"
+}
+const arr = [];
+const len = persons.length;
+for (let i = 0, i < length; i++) {
+  (console.log(persons.len));
+}
+//Use a for loop to console.log each key//
+for (persons)
+  //Then use a for...in loop and if state to console.log the value associated with the key birthdate//
+  for (persons.len) {
+    console.log(persons.bdate));
+}
+//for in...//
+const text = " ";
+const x;
+for (x in persons) {
+  text += persons[x];
+}
+//Use a for loop to console.log the numbers 1 to 1000//
+for (x = 1; x <= 1000; x++) {
+  console.log(x);
+}
+
+//do...while loop... Use a do...while loop to console.log the numbers from 1 to 1000//
+const i = 0
+do {
+  i += 1 console.log(i)
+}
+while (i < 1000);
+/*When is a for loop better than a while loop? It is better when you want to initiate many values and also if you want to omit a statement.*/
+//How is the readibility affected?//
+
+/*What is the difference between a for loop and a for... in loop?  The difference is  the for... in when used to iterate over an array will return the name of the user defined property in addition to numeric indexes. A for loop will return a numerical index.*/
+
+/*What is the difference between a while loop and a do... while loop?  A while loop executes its statements as long as a specified condition evaluates to true.  A do while will always be executed at least once, even if the condition is false because the code is executed before the condition is tested.*/
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