JavaScript's understanding of object-oriented function constructors

1, when creating a class using a function, the function itself is also called the constructor of the class, the constructor method of the class, the constructor of the class, the constructor of the class, and so on.

2, note that the constructor method does not return a value, and when you create an instance of the class, you must call the constructor method of the class.

3, gets the constructor method, using the construction property on the instantiated object, you can get the constructor method of the instance.

JavaScript's understanding of object-oriented function constructors