What's the best alternative to update nested React state property with setState()?

I can think of a few other ways to achieve it.

Deconstructing every nested element and only overriding the right one :

this.setState(prevState => ({
    inputs: {
        ...prevState.inputs,
        username: {
            ...prevState.inputs.username,
            touched: true
        }
    }
}))

Using the deconstructing operator to copy your inputs :

this.setState(prevState => {
    const inputs = {...prevState.inputs};
    inputs.username.touched = true;
    return { inputs }
})

---

EDIT

First solution using computed properties :

this.setState(prevState => ({
    inputs: {
        ...prevState.inputs,
        [field]: {
            ...prevState.inputs[field],
            [action]: value
        }
    }
}))