school.js

// build a School Catalogue

class School {
  constructor(name, level, numberOfStudents) {
    this._name = name;
    this._level = level;
    this._numberOfStudents = numberOfStudents;
  }
  get name() {
    return (this._name = name);
  }
  get level() {
    return (this._level = "primary"), "middle", "high";
  }
  get numberOfStudents() {
    return (this._numberOfStudents = numberOfStudents);
  }
  set numberOfStudents(value) {
    if (value.isNaN()) {
   console.log("Invalid input: numberOfStudents must be set to a Number.");
  } else {
    this._numberOfStudents = value
  }}

  quickFacts() {
    console.log(`${this._name} educates ${this._numberOfStudents} students at the ${this._level} school level.`)
  }

static pickSubstituteTeacher(substituteTeachers) {
const randInt = Math.floor( Math.random()* substituteTeachers.length);
return substituteTeachers[randInt]
}
}

class PrimarySchool extends School {
constructor(name,numberOfStudents,pickupPolicy) {
  super(name,'primary', numberOfStudents);
    this._pickupPolicy = pickupPolicy;
  }
  get pickupPolicy() {
    return this._pickupPolicy;
  }
}
class Middle extends School {
  constructor() {
    super(name);
  }
}

class HighSchool extends School {
  constructor(name, numberOfStudents,sportsTeams) {
    super(name, 'high',numberOfStudents);
    this._sportsTeams = sportsTeams;
  }
  get sportsTeams() {
    return this._sportsTeams;
  }
}

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()

const sub = School.pickSubstituteTeacher(['Jamal Crawford', 'Lou Williams', 'J. R. Smith', 'James Harden', 'Jason Terry', 'Manu Ginobli'])
console.log(sub)

const alSmith = new HighSchool ('Al E. Smith',415,['Baseball', 'Basketball', 'Volleyball', 'Track and Field'])

console.log(alSmith.sportsTeams)