This is a more of a can it ever be done even with a parser like babel or anything type of question which i believe is allowed in SU. All just to make my code cleaner for Reducer and State in general; what I want to do is:

return {
   ...state,
   myObj: {
       ...state.myObj,
      items: [
        ...state.myObj.items,
        [index]: newValue, // do something like this
      ]
   }
}

Anyone know how we can do this cleanly? I dont want to use a slice() or just do newState.myObj.items[index] = newValue as that messy and difficult to read as per other SU answers. Maybe I'm the only one that OCD about clean reducer states, without using a library. Anyone have come across this pattern or how one may achieve it? Id be happy to install a bebel plugin but cant seem to find one.

Thanks