javascript create dynamic class by object

Question

Task: I want to create a dynamic class by a given JSON Object in ES6.

After a lot of reading in the MDN web docs and much stackoverflow questions i'm totally confused how to get this work.

JSON Object

{
    constructor: {
        name: "someName",
    },
    getter: {
        function1: () => "someOutput",
        function2: () => false,
    }
}

While I tried to solve the problem I figured out how to create dynamic getter methods by using "Proxy" or "defineProperty" but how i should handle the constructor?? :(

I hope someone can help me with a hint or an example. Thanks in advance

Answer 1

You can add constructor to your class created by Proxy using Proxy's "construct" handler method:

const jsonObj = {
    constructor: {
        name: "someName",
    },
    getter: {
        function1: () => "someOutput",
        function2: () => false,
    }
}


function baseClass(obj) {
  for(i in obj){
    this[i] = obj[i]

  }
}

const handler = {
  construct(target, args) {
    return new target(jsonObj.constructor);
  }
};

const NewClass = new Proxy(baseClass, handler);