How do you check the difference between an ECMAScript 6 class and function?

Question

In ECMAScript 6 the typeof of classes is, according to the specification, \'function\'.

However also according to the specification you are

Answer 1

You can use new.target to determine whether whether its instantiated by ES6 class function or function constructor

class Person1 {
  constructor(name) {
    this.name = name;
    console.log(new.target) // => // => [Class: Person1]
  }
}

function Person2(){
  this.name='cc'
  console.log(new.target) // => [Function: Person2]
}