new problems has been solved by me

Author: shihabuddin-dev

E. Object/all.js

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+/* Problem-19
+
+You have an object, which contains an array called students.
+We need to check the students array using a for loop.
+If "Alice" is present, it will print "Alice is in the class".
+If not, it will print "Alice is not in the class".
+
+const classroom = {
+    className: "JavaScript Basics",
+    students: ["John", "Jane", "Alice", "Bob", "Eve"]
+};
+
+*/
+
+const classroom = {
+    className: "JavaScript Basics",
+    students: ["John", "Jane", "Alice", "Bob", "Eve"]
+};
+let alice = false;
+
+for (let i = 0; i < classroom.students.length; i++) {
+    if (classroom.students[i] === "Alice") {
+        alice = true;
+        break;
+    }
+
+}
+
+if (alice) {
+    console.log("Alice is in the class");
+}
+else {
+    console.log("Alice is not in the class");
+}

E. Object/even-number.js

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+/* Problem-17
+
+Print only even numbers from the array below.
+const numbers = [10, 25, 30, 47, 52, 61, 70, 85, 90];
+
+*/
+const numbers = [10, 25, 30, 47, 52, 61, 70, 85, 90];
+
+
+// Solution-1 by for loop 
+
+for (let i = 0; i < numbers.length; i++) {
+    if (i % 2 === 0) {
+        console.log(numbers[i]);
+    }
+}
+
+// solution-2 by while loop 
+let j = 0;
+while (j < numbers.length) {
+    j++;
+    if (j % 2 === 0) {
+        console.log(numbers[j]);
+    }
+}

E. Object/key-vlue.js

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+/* Problem-18
+
+You have a Student object. You print the key and value of the object.
+const student = {
+    name: "Alice",
+    age: 20,
+    grade: "A",
+    city: "New York",
+    isGraduated: false
+};
+
+
+*/
+const student = {
+    name: "Alice",
+    age: 20,
+    grade: "A",
+    city: "New York",
+    isGraduated: false
+};
+
+let keys = Object.values(student);
+console.log(keys);
+for (let key in student) {
+    console.log(`${key} : ${student[key]}`);
+
+}
+if (student.isGraduated) {
+    console.log("Graduated");
+}
+else {
+    console.log("Not Graduated");
+}

E. Object/max-number.js

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+/* Problem-15
+
+Find the largest number among the following numbers using loop.
+const numbers = [12, 45, 78, 23, 89, 56, 99, 34];
+
+*/
+
+const numbers = [12, 45, 78, 23, 89, 56, 99, 34];
+
+// Solution-1 by for loop 
+let maxNumber = numbers[0];
+for (let i = 0; i < numbers.length; i++) {
+    if (numbers[i] > maxNumber) {
+        maxNumber = numbers[i];
+    }
+}
+console.log(maxNumber);
+
+
+// solution-2 by Math.max 
+let maxNum = Math.max(...numbers);
+console.log(maxNum);

E. Object/min-number.js

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+/* Problem-14
+
+Find the largest number among the following numbers using loop.
+const numbers = [12, 45, 78, 23, 100, 89, 56, 99, 34];
+
+*/
+
+const numbers = [12, 45, 78, 23, 100, 5, 89, 56, 99, 34];
+
+// Solution-1 by for loop 
+
+let minNumber = numbers[0];
+for (let i = 0; i < numbers.length; i++) {
+    if (numbers[i] < minNumber) {
+        minNumber = numbers[i];
+    }
+}
+console.log(minNumber);
+
+
+// solution-2 by Math.min 
+let minNum = Math.min(...numbers);
+console.log(minNum);

E. Object/reverse-word.js

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+/* Problem-14
+
+You have a string, “hello”! Write a program to reverse it and see what output it produces. */
+
+let words = "hello";
+let revWord = " ";
+for (let word of words) {
+    revWord = word + words;
+}
+console.log(`"${revWord}"`);