Question 243061 in Javascript Question posted in
A very good W3school tutorial can be found here.

Javascript – Automatically run some code when subclass is declared

It should be something like:

class C {
    static m() { console.log('hi') }
}

// automatically run C.m
class D extends C { }

A python case is found. Is this possible in JavaScript?

Tags:

2

Answers


  1. 0

    In JS, you can’t automatically run code when a subclass is declared.

    Login or Signup to reply.
  2. 0

    Javascript doesn’t have a metaclass per se, but you can create a pseudo metaclass by defining a class within a function:

    function C() {
    class Cls {
      static m() { console.log('hi') }
    }
    Cls.m()
    return Cls
}

class D extends C() {} // prints 'hi'
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search