Надо массив объектов превратить в массив элементов класса js

 const studentsData = [
  {
    firstName: 'Василий',
    lastName: 'Петров',
    admissionYear: 2019,
    courseName: 'Java',
  },
  {
    firstName: 'Иван',
    lastName: 'Иванов',
    admissionYear: 2018,
    courseName: 'JavaScript',
  }
];

let arrValues = studentsData.reduce((a, c) => {
      a.push(...Object.values(c));
      return a;
    }, [])
 
console.log(arrValues); // ["Василий", "Петров", 2019, "Java", "Иван", "Иванов", 2018, "JavaScript"]

class Student {
    constructor(firstName, lastName, admissionYear, courseName) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.admissionYear = admissionYear;
        this.courseName = courseName;
    }
}
const studentsData = [
    {
        firstName: 'Василий',
        lastName: 'Петров',
        admissionYear: 2019,
        courseName: 'Java',
    },
    {
        firstName: 'Иван',
        lastName: 'Иванов',
        admissionYear: 2018,
        courseName: 'JavaScript',
    }
];
let data2 = studentsData.map(e => new Student(...Object.values(e)));
console.log(data2);

const studentsData = [
    {
        firstName: 'Василий',
        lastName: 'Петров',
        admissionYear: 2019,
        courseName: 'Java',
    },
    {
        firstName: 'Иван',
        lastName: 'Иванов',
        admissionYear: 2018,
        courseName: 'JavaScript',
    }
];
 
function Student(){};
studentsData.forEach(v => Object.setPrototypeOf(v, Student.prototype));