devmentor-pl · TetraMeister · Jan 14, 2026 · devmentor-pl · Jan 15, 2026 · devmentor-pl
diff --git a/01/assets/js/app.js b/01/assets/js/app.js
@@ -1,4 +1,28 @@
 const a = '4.2';
 const b = 9;
 
-console.log(a, b);
+console.log(a, b);
+
+console.log("a:", typeof a);
+console.log("b:", typeof b);
+
+const operObj = {
+  sum: parseInt(b) + parseInt(a),
+  sub: parseInt(b) - parseInt(a),
+  divd: parseInt(b) / parseInt(a),
+  mult: parseInt(b) * parseInt(a),
+  concat: String(a) + parseInt(b),
+  modulo: parseInt(b) % parseInt(a)
+};
+
+for (const key in operObj) {
+  if (operObj[key] > 20) {
+    console.log(`Wartość ${key} jest większa od 20`);
+  } else if (operObj[key] === 20) {
+    console.log(`Wartość ${key} jest równa 20`)
+  } else if (operObj[key] < 20) {
+    console.log(`Wartość ${key} jest mniejsza niż 20`)
+  } else if (typeof operObj[key] !== "number") {
+    console.log(`Wartość ${key} nie jest ${typeof operObj[key]}`)
+  }
+};
diff --git a/01/index.html b/01/index.html
@@ -1,12 +1,21 @@
 <!DOCTYPE html>
 <html lang="pl">
+
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta
+        name="viewport"
+        content="width=device-width, initial-scale=1.0"
+    >
+    <meta
+        http-equiv="X-UA-Compatible"
+        content="ie=edge"
+    >
     <title>devmentor.pl - JS BASICS - #01</title>
 </head>
+
 <body>
-
+    <script src="./assets/js/app.js"></script>
 </body>
+
 </html>
diff --git a/02/app.js b/02/app.js
@@ -1,7 +1,37 @@
-
 /* rozwiązanie z pętlą for */
-const x = 4;
+const x = parseInt(prompt('Podaj liczbę!'));
+
+
+for (let i = 1; i < 10; i++) {
+  const result = x * i;
+  console.log(`${x} * ${i} = ${result}`);
+}
+
+/* rozwiązanie z pętlą while  */
+const a = parseInt(prompt('Wprowadź podstawę potęgi!'));
+const n = parseInt(prompt('Wprowadź wykładnik potęgi!'));
+
+if (isNaN(a) || isNaN(n)) {
+  console.error('Wprowadzono nieodpowiedni format danych. Odśwież stronę i spróbuj jeszcze raz!');
+} else {
+  let j = 2;
+  const powResult = Math.pow(a, n);
 
+  let message = `${a}`
 
+  if (n === 0) {
+    message = `${a} do potęgi zerowej to zero!`;
+  } else if (n === 1) {
+    message = `${a} do potęgi 1 to ${a}!`;
+  } else if (n === -1) {
+    message = `${a} do potęgi 1 to -${a}!`;
+  } else {
+    while (j <= n) {
+      const addon = ` * ${a}`
+      message = `${message}${addon}`;
 
-/* rozwiązanie z pętlą while  */
+      j++
+    };
+    console.log(message + ' = ' + powResult);
+  };
+};
diff --git a/02/index.html b/02/index.html
@@ -1,12 +1,21 @@
 <!DOCTYPE html>
 <html lang="pl">
+
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta
+        name="viewport"
+        content="width=device-width, initial-scale=1.0"
+    >
+    <meta
+        http-equiv="X-UA-Compatible"
+        content="ie=edge"
+    >
     <title>devmentor.pl - JS BASICS - #02</title>
 </head>
+
 <body>
-
+    <script src="./app.js"></script>
 </body>
+
 </html>
diff --git a/03/app.js b/03/app.js
@@ -8,11 +8,49 @@ const c = randomNumber(min, max);
 console.log(a, b, c);
 
 
-
-
-
-
+const isEven = function (int) {
+    if (typeof int === 'number') {
+        if (int % 2 === 0) {
+            return true
+        } else {
+            return false
+        }
+    } else {
+        return null
+    }
+};
 
 function randomNumber(min, max) {
     return Math.round((Math.random() * (max - min)) + min);
-}
+};
+
+function getSum(a, b, c) {
+    const aP = parseInt(a);
+    const bP = parseInt(b);
+    const cP = parseInt(c);
+
+    const min = Math.min(aP, bP, cP);
+    return aP + bP + cP - min
+};
+
+function showInfo(x, y) {
+    switch (y) {
+        case null:
+            console.log(`Podany argument ${x} nie jest liczbą`);
+            break;
+        case true:
+            console.log(`Podany argument ${x} jest parzysty`);
+            break;
+        case false:
+            console.log(`Podany argument ${x} jest nie parzysty`);
+            break;
+        default:
+            console.error('Wprowadzono błędne parametry funkcji showInfo! Parametr "y" przyjmuje wartości: "null", "true" lub "false".')
+    };
+};
+
+
+const sum = getSum(a, b, c);
+const sumIsEven = isEven(sum);
+
+showInfo(sum, sumIsEven);
diff --git a/04/app.js b/04/app.js
@@ -0,0 +1,30 @@
+const array = createArray(10, 200);
+const top10 = getLargest(array);
+console.log(getAvg(top10));
+
+
+
+
+function createArray(min, max) {
+  const array = [];
+
+  for (let i = 0; i < 20; i++) {
+    const randomNumber = Math.round((Math.random() * (max - min)) + min);
+    array.push(randomNumber);
+  };
+
+  return array
+};
+
+function getLargest(array) {
+  const newArray = array.sort((a, b) => b - a).slice(0, 10);
+  return newArray
+};
+
+function getAvg(array) {
+  const avg = array.reduce((inc, curr) => {
+    return inc += curr
+  }, 0) / array.length;
+
+  return avg
+};
diff --git a/04/index.html b/04/index.html
@@ -1,12 +1,21 @@
 <!DOCTYPE html>
 <html lang="pl">
+
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta
+        name="viewport"
+        content="width=device-width, initial-scale=1.0"
+    >
+    <meta
+        http-equiv="X-UA-Compatible"
+        content="ie=edge"
+    >
     <title>devmentor.pl - JS BASICS - #04</title>
 </head>
+
 <body>
-
+    <script src="./app.js"></script>
 </body>
+
 </html>
diff --git a/05/app.js b/05/app.js
@@ -0,0 +1,38 @@
+function Student(firstName, lastName) {
+  this.firstName = firstName;
+  this.lastName = lastName;
+  this.grades = {};
+};
+
+
+Student.prototype.addGrade = function (className, grade) {
+  if (this.grades[className]) {
+    this.grades[className].push(grade)
+  } else (
+    this.grades[className] = [grade]
+  )
+};
+
+Student.prototype.getAverageGrade = function (className) {
+
+  if (!className) {
+    let avg = 0;
+
+    for (const key in this.grades) {
+      const avgKey = this.grades[key].reduce((inc, curr) => {
+        return inc += curr
+      }, 0) / this.grades[key].length;
+      avg += avgKey;
+    }
+
+    return avg / Object.keys(this.grades).length;
+  } else if (typeof className === "string") {
+    const avgSub = this.grades[className].reduce((inc, curr) => {
+      return inc += curr
+    }, 0) / this.grades[className].length;
+
+    return avgSub
+  } else {
+    return console.error('Zły format parametru getAverageGrade()')
+  }
+}
diff --git a/05/index.html b/05/index.html
@@ -1,12 +1,21 @@
 <!DOCTYPE html>
 <html lang="pl">
+
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta
+        name="viewport"
+        content="width=device-width, initial-scale=1.0"
+    >
+    <meta
+        http-equiv="X-UA-Compatible"
+        content="ie=edge"
+    >
     <title>devmentor.pl - JS BASICS - #05</title>
 </head>
+
 <body>
-
+    <script src="./app.js"></script>
 </body>
+
 </html>