Function useRvEffect

useRvEffect<T>(rv: Rv<T>, f: Listener<T>): void
React hook to subscribe to updates of a reactive variable.

Note: callback is always using current scope.
Type Parameters
- T
Parameters
- rv: Rv<T>
  The reactive variable to subscribe to.
- f: Listener<T>
  A callback function triggered whenever the reactive variable is updated. The first and second arguments are the new and the old value of this rv.
Returns void
Example
```
const counter = rv(0)

useRvEffect(counter, (newVal, oldVal) => {
    console.table({ newVal, oldVal })
})
```
- Defined in use-rv-effect.ts:22