Best way to pass an obj from a class as parameter to the constructor of another class js

Question

In this code Movers should evolve through a GA. I pack the traits to evolve in a Gene object (so as to add more traits) and pass it to the Mover class constructor. Can I keep the Gene object inside the Mover object or do I need to use it to create variables in the constructor?
Is there a better alternative in which I can use this.gen.dx etc directly in Mover? My code works but I would like to know the proper way, please. ChillPill
https://code.sololearn.com/W00hhxF38m4w/?ref=app

Answer 1

yes but I could not make it work the way you say ( I tried first). Should I be able to refer to this.gen.ax then? Is it ok to instantiate Gene objects inside and outside the Movers object? I think my implementation is not the proper style. Besides, if my gene object grows I will need to change Mover. Ideally, I would want to isolate all genetic traits in Gene. Thank you!

Answer 2

Assign gen (parameter) to `this.gen` (instance variable) in constructor of `Mover`.

```
class Mover {
constructor(x, y, radius, gen) {
.
.
.
this.gen = gen;
}
```
Is this what you are looking for?