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.
diff --git a/06week/higherOrder.js b/06week/higherOrder.js
index 73926e3dc..3e25fe612 100644
--- a/06week/higherOrder.js
+++ b/06week/higherOrder.js
@@ -2,18 +2,55 @@
 
 const assert = require('assert');
 
-function forEach(arr, callback) {
-  // Your code here
+// Create a forEach() function that takes an array of items and a function that runs the function arr.length number of times.
+//
+// Create a map() function that takes an array of items and a function that returns an array with each item manipulated by that function.
+//
+// Create a filter() function that takes an array of items and a function that returns an array with only the items that return true in the function.
+
+// a functon that takes an array and a function that runs the function arr.length
+
+const numArray = [2, 4, 6, 8];
+
+function forEach(arr) {
+  for (i = 0; i <= arr.length; i ++){
+    console.log(arr[i] + 2);
+  }
 }
 
+forEach(numArray);
+
+// map consists of an array, a function, and a return array.
+
 function map(arr, callback) {
-  // Your code here
+  const newArr = [];
+  arr.forEach((item) => {
+    newArr.push(callback(item));
+  })
+  return newArr;
+}
+
+map(numArray, (item)=> item + 2);
+
+const numTwoArray = [1,2,3,4,5,6,7,8]
+
+const sortingFunction = (num) => {
+  if(num > 4) {
+    return num;
+  }
 }
 
 function filter(arr, callback) {
-  // Your code here
+  const newFilterArr = [];
+  arr.forEach((num) => {
+    newFilterArr.push(callback(num));
+  })
+  return newFilterArr;
 }
 
+filter (numTwoArray, sortingFunction);
+
+
 function some(arr, callback) {
   // Your code here
 }
diff --git a/package-lock.json b/package-lock.json
index 62353c45d..f28cfa5c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,16 +4,6 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
-    "JSONStream": {
-      "version": "0.8.4",
-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-0.8.4.tgz",
-      "integrity": "sha1-kWV9/m/4V0gwZhMrRhi2Lo9Ih70=",
-      "dev": true,
-      "requires": {
-        "jsonparse": "0.0.5",
-        "through": "2.3.8"
-      }
-    },
     "abab": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/abab/-/abab-1.0.4.tgz",
@@ -2707,6 +2697,16 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
+    "JSONStream": {
+      "version": "0.8.4",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-0.8.4.tgz",
+      "integrity": "sha1-kWV9/m/4V0gwZhMrRhi2Lo9Ih70=",
+      "dev": true,
+      "requires": {
+        "jsonparse": "0.0.5",
+        "through": "2.3.8"
+      }
+    },
     "jsprim": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -4367,6 +4367,11 @@
         "through": "2.3.8"
       }
     },
+    "string_decoder": {
+      "version": "0.10.31",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ="
+    },
     "string-to-stream": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/string-to-stream/-/string-to-stream-1.1.0.tgz",
@@ -4427,11 +4432,6 @@
         }
       }
     },
-    "string_decoder": {
-      "version": "0.10.31",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ="
-    },
     "stringstream": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",