A ref allows unproxied state in a Valtio proxy

A ref is useful in the rare instances you need to nest an object in a proxy that is not wrapped in an inner proxy and, therefore, is not tracked.

const store = proxy({
    users: [
        { id: 1, name: 'Juho', uploads: ref([]) },

Once an object is wrapped in a ref, it should be mutated without resetting the object or rewrapping in a new ref.

// do mutate
store.users[0].uploads.push({ id: 1, name: 'Juho' })
// do reset

// don't
store.users[0].uploads = []

A ref should also not be used as the only state in a proxy, making the proxy usage pointless.

Codesandbox demo