ES2015类和 ES5 函数构造函数之间有什么区别？

// ES5 Function Constructor
function Person(name) {
  this.name = name;
}

// ES2015 Class
class Person {
  constructor(name) {
    this.name = name;
  }
}

// ES5 Function Constructor
function Student(name, studentId) {
  // Call constructor of superclass to initialize superclass-derived members.
  Person.call(this, name);

  // Initialize subclass's own members.
  this.studentId = studentId;
}

Student.prototype = Object.create(Person.prototype);
Student.prototype.constructor = Student;

// ES2015 Class
class Student extends Person {
  constructor(name, studentId) {
    super(name);
    this.studentId = studentId;
  }
}