From d60faed70ffdc7da24076081b0e03e32d16f24e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Ko=C5=82tuniak?= <m.koltuniak@gmail.com>
Date: Mon, 16 Feb 2026 19:26:31 +0100
Subject: [PATCH 1/5] add task 1

---
 01/app.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/01/app.js b/01/app.js
index e69de29..a497bfc 100644
--- a/01/app.js
+++ b/01/app.js
@@ -0,0 +1,6 @@
+const users = ['Jan Kowalski', 'Monika Wysocka', 'Adam Nowak', 'Michał Ozimek', 'Dorota Rudzińska', 'Agata Borsuk'];
+
+console.log(users[0]);
+console.log(users[2]);
+console.log(users[4]);
+console.log('Liczba elementów tablicy:', users.length);

From e0fa8a55dcfb3096c5702a51194d5bae8f71d6ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Ko=C5=82tuniak?= <m.koltuniak@gmail.com>
Date: Mon, 16 Feb 2026 19:50:50 +0100
Subject: [PATCH 2/5] add task 2

---
 02/app.js | 30 ++++++++++++++++++++++--------
 1 file changed, 22 insertions(+), 8 deletions(-)

diff --git a/02/app.js b/02/app.js
index 9ad302b..268de64 100644
--- a/02/app.js
+++ b/02/app.js
@@ -1,6 +1,20 @@
 const randomArray = createRandomArray();
 console.log(randomArray);
 
+// wyświetlenie w konsoli wszystkich elementów tablicy przy pomocy pętli for
+
+for (let i = 0; i < randomArray.length; i++) {
+	console.log(randomArray[i]);
+}
+
+// wyświetlenie w konsoli wszystkich elementów tablicy przy pomocy metody tablicowej .forEach()
+
+randomArray.forEach(el => console.log(el));
+
+// wyświetl wartość ostatniego elementu tablicy
+console.log(randomArray[randomArray.length - 1]);
+
+
 
 
 // nie modyfikuj kodu poniżej!
@@ -9,15 +23,15 @@ console.log(randomArray);
 // ponieważ w JS występuje mechanizm tzw. hoisting-u
 
 function createRandomArray() {
-    const arr = [];
-    const len = getRandomInteger(1, 10)
-    for(let i=0; i<len; i++) {
-        arr.push( getRandomInteger(1, 100) );
-    }
+	const arr = [];
+	const len = getRandomInteger(1, 10);
+	for (let i = 0; i < len; i++) {
+		arr.push(getRandomInteger(1, 100));
+	}
 
-    return arr;
+	return arr;
 }
 
 function getRandomInteger(min, max) {
-    return Math.round(Math.random() * (max-min) + min);
-}
\ No newline at end of file
+	return Math.round(Math.random() * (max - min) + min);
+}

From 63cebf4111f3cc761a1414665e31106288d3d253 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Ko=C5=82tuniak?= <m.koltuniak@gmail.com>
Date: Mon, 16 Feb 2026 20:10:52 +0100
Subject: [PATCH 3/5] add task 3

---
 03/app.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/03/app.js b/03/app.js
index cebcbc2..1816772 100644
--- a/03/app.js
+++ b/03/app.js
@@ -1,2 +1,11 @@
 const n = 24;
-const oddNumbers = [];
\ No newline at end of file
+const oddNumbers = [];
+
+for (let i = 1; i <= n; i++) {
+	if (i % 2) {
+		oddNumbers.push(i);
+	}
+}
+
+console.log(oddNumbers);
+console.log('długość tablicy:', oddNumbers.length);

From 205f9795b0695a40368fff5e7277cc5e1a81319a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Ko=C5=82tuniak?= <m.koltuniak@gmail.com>
Date: Mon, 16 Feb 2026 20:21:28 +0100
Subject: [PATCH 4/5] add task 4

---
 04/app.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/04/app.js b/04/app.js
index 8285afd..186344c 100644
--- a/04/app.js
+++ b/04/app.js
@@ -1 +1,7 @@
-const years = [1980, 1934, 2002, 2019];
\ No newline at end of file
+const years = [1980, 1934, 2002, 2019];
+
+const currYear = new Date().getFullYear();
+
+const newArr = years.map(year => currYear - year);
+
+console.log(newArr);

From 3c5b96465092d3735ff57613b4af45fd4e3c9cb4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Ko=C5=82tuniak?= <m.koltuniak@gmail.com>
Date: Mon, 16 Feb 2026 20:27:38 +0100
Subject: [PATCH 5/5] add task 5

---
 05/app.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/05/app.js b/05/app.js
index 1c6bb90..a666bb7 100644
--- a/05/app.js
+++ b/05/app.js
@@ -1 +1,5 @@
-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 evenSum = numbers.filter(num => num % 2 === 0).reduce((acc, curr) => acc + curr, 0);
+
+console.log(evenSum);