devmentor-pl · jankowskaweronika · Dec 13, 2024 · Dec 13, 2024 · Dec 13, 2024 · Dec 13, 2024
diff --git a/01/assets/js/app.js b/01/assets/js/app.js
@@ -1,4 +1,25 @@
 const a = '4.2';
 const b = 9;
+console.log(a, b);
+console.log(typeof a, typeof b);
+const add = parseFloat(a) + b;
+console.log(add);
 
-console.log(a, b);
+const sub = a - b;
+console.log(sub);
+
+const multiply = a * b;
+console.log(multiply.toFixed(2));
+
+const divided = a / b;
+console.log(divided.toFixed(2));
+
+const arr = [add, sub, multiply, divided];
+
+arr.forEach(function (num) {
+  if (num > 20) {
+    console.log(`${num.toFixed(2)} jest większe od 20`);
+  } else {
+    console.log(`${num.toFixed(2)} jest mniejsze lub równe 20`);
+  }
+});
diff --git a/01/index.html b/01/index.html
@@ -7,6 +7,6 @@
     <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 +1,33 @@
+const x = Number(prompt('Podaj liczbę!'));
 
-/* rozwiązanie z pętlą for */
-const x = 4;
+if (x >= 1 && x < 10) {
+  for (let i = 1; i <= 9; i++) {
+    res = i * x;
+    console.log(`${i} x ${x} = ${res}`);
+  }
+} else {
+  console.log('Podałeś błędne dane!');
+}
 
+/* rozwiązanie z pętlą while  */
+const a = Number(prompt('Podaj liczbę z przedziału 1-100!'));
+const n = Number(prompt('Podaj potęgę od 0-10!'));
 
-
-/* rozwiązanie z pętlą while  */
+if (a > 1 && a < 100 && n > 0 && n <= 10) {
+  let i = 0;
+  let result = 1;
+  let info = '';
+  while (i < n) {
+    result *= a;
+    if (i > 0) {
+      info += ' * ';
+    }
+    info += a;
+    i++;
+  }
+  info = info + ' = ' + result;
+  console.log(result);
+  console.log(info);
+} else {
+  console.log('Podałeś błędne dane!');
+}
diff --git a/02/index.html b/02/index.html
@@ -7,6 +7,6 @@
     <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
@@ -1,18 +1,43 @@
-const min = 1;
-const max = 100;
-
-const a = randomNumber(min, max);
-const b = randomNumber(min, max);
-const c = randomNumber(min, max);
-
-console.log(a, b, c);
-
-
-
-
-
-
-
+function getSum(a, b, c) {
+    const aInt = parseInt(a);
+    const bInt = parseInt(b);
+    const cInt = parseInt(c);
+
+    const arr = [aInt, bInt, cInt];
+    arr.sort(function (a, b) {
+        return b - a;
+    });
+    return arr[0] + arr[1];
+}
+
+function isEven(num) {
+    if (typeof num !== 'number') {
+        return null;
+    }
+    return num % 2 === 0;
+}
+
+console.log(isEven(2), isEven(1), isEven('r'));
+
+function showInfo(value, isEven) {
+    switch (isEven) {
+        case null:
+            console.log(`${value} nie jest liczbą`);
+
+            break;
+        case true:
+            console.log(`Liczba ${value} jest parzysta`);
+
+            break;
+        case false:
+            console.log(`Liczba ${value} jest nieparzysta`);
+            break;
+    }
+}
+
+const sum = getSum(a, b, c);
+const even = isEven(sum);
+showInfo(sum, even);
 function randomNumber(min, max) {
-    return Math.round((Math.random() * (max - min)) + min);
+    return Math.round(Math.random() * (max - min) + min);
 }
diff --git a/04/app.js b/04/app.js
@@ -0,0 +1,32 @@
+const arr = createArray(10, 200);
+const largest = getLargest(arr);
+const avg = getAvg(largest);
+
+console.log(arr, largest, avg);
+
+function createArray(min, max) {
+  const arr = [];
+
+  for (let i = 0; i < 20; i++) {
+    const num = Math.round(Math.random() * (max - min) + min);
+    arr.push(num);
+  }
+  return arr;
+}
+
+function getLargest(arr) {
+  arr.sort(function (a, b) {
+    return b - a;
+  });
+  return arr.slice(0, 10);
+}
+
+function getAvg(arr) {
+  if (arr.length === 0) {
+    return 0;
+  }
+  const sum = arr.reduce(function (acc, curr) {
+    return acc + curr;
+  }, 0);
+  return sum / arr.length;
+}
diff --git a/04/index.html b/04/index.html
@@ -7,6 +7,6 @@
     <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 +1,50 @@
+function Student(fName, lName) {
+  this.firstName = fName;
+  this.lastName = lName;
+  this.grades = {};
+}
+
+Student.prototype.addGrade = function (subject, grade) {
+  if (typeof this.grades[subject] === 'undefined') {
+    this.grades[subject] = [];
+  }
+  this.grades[subject].push(grade);
+};
+
+Student.prototype.getAverageGrade = function (subject) {
+  if (typeof subject === 'undefined') {
+    const grades = [];
+    for (const grade in this.grades) {
+      const arr = this.grades[grade];
+      arr.forEach(function (item) {
+        grades.push(item);
+      });
+    }
+
+    return this.avg(grades);
+  }
+  if (typeof this.grades[subject] === 'undefined') {
+    return 0;
+  }
+  const grades = this.grades[subject];
+  return this.avg(grades);
+};
+
+Student.prototype.avg = function (arr) {
+  if (arr.length === 0) {
+    return 0;
+  }
+  const sum = arr.reduce(function (acc, curr) {
+    return acc + curr;
+  }, 0);
+  return sum / arr.length;
+};
+const student = new Student('Jan', 'Kowalski');
+student.addGrade('math', 4);
+student.addGrade('math', 2);
+student.addGrade('german', 1);
+student.addGrade('german', 3);
+student.addGrade('german', 2);
+student.addGrade('german', 5);
+console.log(student.getAverageGrade('math'));
+console.log(student.getAverageGrade('german'));
diff --git a/05/index.html b/05/index.html
@@ -7,6 +7,6 @@
     <title>devmentor.pl - JS BASICS - #05</title>
 </head>
 <body>
-
+    <script src="./app.js"></script>
 </body>
 </html>
-Original file line number
+Diff line change
@@ Expand Up / @@ -7,6 +7,6 @@ @@
         <title>devmentor.pl - JS BASICS - #01</title>
     </head>
     <body>
+        <script src="./assets/js/app.js"></script>
     </body>
     </html>