static member ineritence

class BaseClass {
    static baseMethod () { console.log("Hello from baseMethod"); }
}

class MyClass extends BaseClass {
    constructor(props) {
        super(props);
    }
  
  static Woo () {
    console.log('i am wooo')
  }
}
Object.assign(MyClass, BaseClass);

MyClass.baseMethod();
MyClass.Woo();
console.log(MyClass.prototype)
console.log(BaseClass.prototype)

function A(){} 
A.prototype ={a:function(){}}

function B(){} 
B.prototype ={b:function(){}}

Object.assign(A,B)
console.log(A.prototype)
console.log(B.prototype)

http://stackoverflow.com/questions/5441508/how-to-inherit-static-methods-from-base-class-in-javascript