How to update nested state properties in React

Question

I\'m trying to organize my state by using nested property like this:

this.state = {
   someProperty: {
      flag:true
   }
}

But updating

Answer 1

We use Immer https://github.com/mweststrate/immer to handle these kinds of issues.

Just replaced this code in one of our components

this.setState(prevState => ({
   ...prevState,
        preferences: {
            ...prevState.preferences,
            [key]: newValue
        }
}));

With this

import produce from 'immer';

this.setState(produce(draft => {
    draft.preferences[key] = newValue;
}));

With immer you handle your state as a "normal object". The magic happens behind the scene with proxy objects.