Untitled

// ## School information on school.js page [5]*********************************
// **School Data:**

const school = {
  name: "XYZ School",
  establishYear: 1990,
  departments: {
    math: { teachers: 5, students: 150 },
    science: { teachers: 4, students: 120 },
    history: { teachers: 3, students: 100 },
    english: { teachers: 4, students: 130 },
  },
  courses: ["math", "science", "history", "english"],
  students: [
    {
      name: "Alice",
      className: "Grade 5",
      scores: { math: 95, science: 88, history: 85, english: 92 },
    },
    {
      name: "Bob",
      className: "Grade 4",
      scores: { math: 80, science: 78, history: 92, english: 85 },
    },
    {
      name: "Charlie",
      className: "Grade 5",
      scores: { math: 88, science: 90, history: 78, english: 88 },
    },
    {
      name: "Diana",
      className: "Grade 4",
      scores: { math: 92, science: 85, history: 88, english: 90 },
    },
  ],
};

//**Problem 10: countCalculation** [1]*****************

function countCalculation(school) {
  // Extract the `mathTeachersCount` ,`historyTeachersCount` ,`mathStudentsCount` , and  `historyStudentsCount` using multilevel destructuring.
  const {
    departments: {
      math: { teachers: mathTeachersCount, students: mathStudentsCount },
      history: { teachers: historyTeachersCount, students: historyStudentsCount },
    },
  } = school;

  return { mathTeachersCount, historyTeachersCount, mathStudentsCount, historyStudentsCount };
}
console.log(countCalculation(school));
//Output : {
//   mathTeachersCount: 5,
//   historyTeachersCount: 3,
//   mathStudentsCount: 150,
//   historyStudentsCount: 100
// }


//**Problem 11: findTopStudent** [1]******************

function findTopStudent(school, courseName) {
  // Write a function **`findTopStudent`** that takes a course name as a parameter and finds the student with the highest score in that course using multilevel destructuring.
  let topStudent = { scores: { [courseName]: -1 } };
  for (const student of school.students) {
    if (student.scores[courseName] > topStudent.scores[courseName]) {
      topStudent = student;
    }
  }
  return topStudent;
}

console.log(findTopStudent(school, "math"));
// {
//   name: 'Alice',
//   className: 'Grade 5',
//   scores: { math: 95, science: 88, history: 85, english: 92 }
// }

//**Problem 12: addNewDept** [1]************************
const newDepartment = {
  art: { teachers: 2, students: 50 },
};

function addNewDept(school, newDepartment) {
  // Use the spread operator to add new department **`art`** with teachers and students to the school's departments.
  return { ...school, departments: { ...school.departments, ...newDepartment } };
}

console.log(addNewDept(school, newDepartment));
//  {
//   name: 'XYZ School',
//   establishYear: 1990,
//   departments: {
//     math: { teachers: 5, students: 150 },
//     science: { teachers: 4, students: 120 },
//     history: { teachers: 3, students: 100 },
//     english: { teachers: 4, students: 130 },
//     art: { teachers: 2, students: 50 }
//   },
//   courses: [ 'math', 'science', 'history', 'english' ],
//   students: [
//     { name: 'Alice', className: 'Grade 5', scores: [Object] },
//     { name: 'Bob', className: 'Grade 4', scores: [Object] },
//     { name: 'Charlie', className: 'Grade 5', scores: [Object] },
//     { name: 'Diana', className: 'Grade 4', scores: [Object] }
//   ]
// }


//**Problem 13: highestStudentCountDepartment**[1]************

function highestStudentCountDepartment(school) {
  //Write a function **`highestStudentCountDepartment`** that returns the department (name) with the highest number of students.
  let highestCount = -1;
  let highestDept = '';
  for (const [dept, { students }] of Object.entries(school.departments)) {
    if (students > highestCount) {
      highestCount = students;
      highestDept = dept;
    }
  }
  return highestDept;
}

console.log(highestStudentCountDepartment(school)); //math

// **Problem 14: Greeting Message** [1]**********************

function generateGreeting(name, language = "English") {
  const greetings = {
    English: `Hello, ${name}!`,
    Spanish: `¡Hola, ${name}!`,
    French: `Bonjour, ${name}!`,
  };

  return greetings[language] || greetings["English"];
}

// **Example:**
console.log(generateGreeting("Alice")); // Output: "Hello, Alice!"
console.log(generateGreeting("Bob", "Spanish")); // Output: "¡Hola, Bob!"
console.log(generateGreeting("Charlie", "French")); // Output: "Bonjour, Charlie!"

//Dont remove below export statement part

export {
  countCalculation,
  findTopStudent,
  addNewDept,
  highestStudentCountDepartment,
  generateGreeting,
};