diff --git a/ex1.js b/ex1.js
index ac1a32b..35672d0 100644
--- a/ex1.js
+++ b/ex1.js
@@ -2,18 +2,4 @@
 
 var array = [1, 2, 3, 4, 5, 6];
 
-array = filter(array, function (each) {
-    return each % 2 === 0;
-});
-
 console.log('Even numbers: ' + array);
-
-function filter(array, predicate) {
-    var result = [];
-    for (var i = 0; i < array.length; i++) {
-        if (predicate(array[i])) {
-            result.push(array[i]);
-        }
-    }
-    return result;
-}
\ No newline at end of file
diff --git a/ex2.js b/ex2.js
index 9a95b14..1e0cd63 100644
--- a/ex2.js
+++ b/ex2.js
@@ -2,11 +2,5 @@
 
 var array = [1, 2, 3, 4, 5, 6];
 
-array = array.filter(function (each) {
-   return each % 2 === 0;
-}).map(function (each) {
-    return each * each;
-});
-
 console.log('Even numbers squared: ' + array);
 
diff --git a/ex3.js b/ex3.js
index 05898c0..e4410d1 100644
--- a/ex3.js
+++ b/ex3.js
@@ -9,11 +9,5 @@ var array = [
     { id: 6, selected: false }
 ];
 
-array = array.filter(function (each) {
-   return each.selected;
-}).map(function (each) {
-    return each.id;
-});
-
 console.log('Ids of selected objects: ' + array);
 
diff --git a/ex4.js b/ex4.js
index 697cb47..eb109ab 100644
--- a/ex4.js
+++ b/ex4.js
@@ -1,20 +1,2 @@
 'use strict';
 
-function Person(name) {
-    this.name = name;
-}
-
-Person.prototype.getName = function () {
-    return this.name;
-};
-
-Person.prototype.setName = function (name) {
-    return this.name = name;
-};
-
-var person = new Person('Jack');
-var person2 = new Person('Jack');
-
-console.log(person.getName());
-console.log(Object.keys(person));
-console.log(Object.keys(person.__proto__));
\ No newline at end of file
diff --git a/ex5.js b/ex5.js
index 1543ded..b2084d4 100644
--- a/ex5.js
+++ b/ex5.js
@@ -1,12 +1,6 @@
 'use strict';
 
 
-factorial(5, function (res) {
-    console.log('res: ' + res);
-});
-
-
-
 function factorial(n, callback) {
     if (n < 0) {
         throw 'illegal argument'
diff --git a/ex6.js b/ex6.js
index 36e2388..bf9c8ea 100644
--- a/ex6.js
+++ b/ex6.js
@@ -3,29 +3,19 @@
 var request = require("request");
 
 get('/api/persons/2948', function(data) {
-    var code = data.code;
-    var name = data.name;
-
-    get('/api/health-insurance/' + code, function(data) {
-        var isInsured = data.isInsured;
-
-        get('/api/tax-debt/' + code, function(data) {
-
-            var debt = data.debt;
-
-            var person = {
-                name : name,
-                isInsured: isInsured,
-                taxDebt: debt
-            };
-
-            console.log(person);
-        });
-    });
-
+    console.log(data);
 });
 
 
+
+
+
+
+
+
+
+
+
 // helper function
 function get(url, cb) {
     request('http://localhost:3000' + url, function(error, response, body) {