schoolCatalogue.js

// top level class::School
class School {
  constructor(name, level, numberOfStudents) {
    this._name = name;
    this._level = level;
    this._numberOfStudents = numberOfStudents;
  }

  get name() {
    return this._name;
  }
  get level() {
    return this._level;
  }
  get numberOfStudents() {
    return this._numberOfStudents;
  }
  set numberOfStudents(studentCount) {
    if (typeof studentCount === 'number') {
    	this._numberOfStudents = studentCount;
    } else {
      console.log('Invalid input: numberOfStudents must be set to a Number.');
    }
  }

  quickFacts() {
    console.log(`${this._name} educates ${this._numberOfStudents} students, typically between the ages of ${this._level}.`);
  }
  static pickSubstituteTeacher(substituteTeachers) {
    return substituteTeachers[Math.floor(Math.random() * substituteTeachers.length)];
  }
}

// sub-class class::PrimarySchool
class PrimarySchool extends School {
  constructor(name, numberOfStudents, pickupPolicy) {
    super(name, numberOfStudents);
    this._level = 'primary';
    this._pickupPolicy = pickupPolicy;
  }

  get pickupPolicy() {
    return this._pickupPolicy;
  }
}

// sub-class class:HighSchool
class HighSchool extends School {
  constructor(name, numberOfStudents, sportsTeams) {
    super(name, numberOfStudents);
    this._level = 'high school';
    this._sportsTeams = sportsTeams;
  }

  get sportsTeams() {
    return this._sportsTeams;
  }
}

// create a primary school
const lorraineHansbury = new PrimarySchool('Lorraine Hansbury', 514, 'Students must be picked up by a parent, guardian, or a family member over the age of 13.');

lorraineHansbury.quickFacts();

// pick substitute teacher from School (static method) class
console.log('Substitute teacher chosen is ' + School.pickSubstituteTeacher(['Jamal Crawford', 'Lou Williams', 'J. R. Smith', 'James Harden', 'Jason Terry', 'Manu Ginobli']));

// create a high school
const alSmith = new HighSchool('Al E. Smith', 415, ['Baseball', 'Basketball', 'Volleyball', 'Track and Field']);

console.log(alSmith.sportsTeams);