From a6e434266c2d409d130b4f09b45cb9e3801e88eb Mon Sep 17 00:00:00 2001
From: Grzegorz Stepien <grzesiek94stepien@gmail.com>
Date: Mon, 8 Apr 2024 18:03:14 +0200
Subject: [PATCH 1/5] finish 01

---
 01/app.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/01/app.js b/01/app.js
index e69de29..5c339f9 100644
--- a/01/app.js
+++ b/01/app.js
@@ -0,0 +1,5 @@
+const users = ['Jan Kowalski', 'Anna Polsza', 'Radek Kozak', 'Michał Radwan', "Katarzyna Jarek"];
+
+console.log(users[0], users[2], users[4]);
+
+console.log(users.length);
\ No newline at end of file

From b32dc8974df92cf71b2b2228f108c06a134ead6a Mon Sep 17 00:00:00 2001
From: Grzegorz Stepien <grzesiek94stepien@gmail.com>
Date: Mon, 8 Apr 2024 18:17:09 +0200
Subject: [PATCH 2/5] finish 02

---
 02/app.js | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/02/app.js b/02/app.js
index 9ad302b..e183155 100644
--- a/02/app.js
+++ b/02/app.js
@@ -1,6 +1,19 @@
 const randomArray = createRandomArray();
 console.log(randomArray);
 
+for (let i = 0; i < randomArray.length; i++) {
+    console.log(randomArray[i]);
+}
+
+randomArray.forEach(function (item) {
+    console.log(item);
+});
+
+const lastIndex = randomArray.length - 1;
+
+console.log(randomArray[lastIndex])
+
+
 
 
 // nie modyfikuj kodu poniżej!
@@ -11,13 +24,13 @@ console.log(randomArray);
 function createRandomArray() {
     const arr = [];
     const len = getRandomInteger(1, 10)
-    for(let i=0; i<len; i++) {
-        arr.push( getRandomInteger(1, 100) );
+    for (let i = 0; i < len; i++) {
+        arr.push(getRandomInteger(1, 100));
     }
 
     return arr;
 }
 
 function getRandomInteger(min, max) {
-    return Math.round(Math.random() * (max-min) + min);
+    return Math.round(Math.random() * (max - min) + min);
 }
\ No newline at end of file

From 72657cafc5cf612639dfac5e8b092274fb4d653d Mon Sep 17 00:00:00 2001
From: Grzegorz Stepien <grzesiek94stepien@gmail.com>
Date: Mon, 8 Apr 2024 20:49:02 +0200
Subject: [PATCH 3/5] finish 03

---
 03/app.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/03/app.js b/03/app.js
index cebcbc2..d4ab2d8 100644
--- a/03/app.js
+++ b/03/app.js
@@ -1,2 +1,10 @@
 const n = 24;
-const oddNumbers = [];
\ No newline at end of file
+const oddNumbers = [];
+
+for( let i=1; i<n; i++){
+    if(i % 2 === 1){
+        oddNumbers.push(i);
+    }
+}
+
+console.log(oddNumbers);
\ No newline at end of file

From 2fdc2370633a3ec3727c97fef2467b3fef055fa9 Mon Sep 17 00:00:00 2001
From: Grzegorz Stepien <grzesiek94stepien@gmail.com>
Date: Mon, 8 Apr 2024 20:55:40 +0200
Subject: [PATCH 4/5] finish 04

---
 04/app.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/04/app.js b/04/app.js
index 8285afd..ab8d92f 100644
--- a/04/app.js
+++ b/04/app.js
@@ -1 +1,9 @@
-const years = [1980, 1934, 2002, 2019];
\ No newline at end of file
+const years = [1980, 1934, 2002, 2019];
+
+const currYear = (new Date()).getFullYear();
+
+const ages = years.map(function(item){
+    return currYear - item;
+});
+
+console.log(ages);
\ No newline at end of file

From 6476644b07be156acb2fd10cd37fcefa9c9938d6 Mon Sep 17 00:00:00 2001
From: Grzegorz Stepien <grzesiek94stepien@gmail.com>
Date: Mon, 8 Apr 2024 21:09:16 +0200
Subject: [PATCH 5/5] finish 05

---
 05/app.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/05/app.js b/05/app.js
index 1c6bb90..47462e1 100644
--- a/05/app.js
+++ b/05/app.js
@@ -1 +1,16 @@
-const numbers = [1, 2, 3, 4, 5, 6, 7];
\ No newline at end of file
+const numbers = [1, 2, 3, 4, 5, 6, 7];
+
+
+const evenNumbers = numbers.filter(isEven);
+
+console.log(evenNumbers);
+
+function isEven(num){
+    return num % 2 === 0;
+};
+
+const sum = evenNumbers.reduce(function(acc, curr){
+    return acc + curr;
+})
+
+console.log(sum);
\ No newline at end of file