Pseudo-multiple inheritance

const superclass = (...list) =>
    list.reduce((ac, cls) => cls(ac), class {});

const A = X => class extends (X || class {}) {
    foo() {
    console.log(`fooA`);
  }
}

const B = X => class extends (X || class {}) {
    foo() {
    super.foo();
    console.log(`fooB`);
  }
}

const C = X => class extends (X || class {}) {
    foo() {
    super.foo();
    console.log(`fooC`);
  }
}

class D extends superclass (A, B, C) {
  foo() {
    super.foo();
    console.log(`fooD`);
  }
}

const d = new D();
d.foo()

// Result: fooA\nfooB\nfooC\fooD
// based on https://stackoverflow.com/a/35925061