Interactive programs without callbacks or side-effects. Functional Reactive Programming (FRP) uses composable events and time-varying values to describe interactive systems as pure functions. Just like other pure functional code, functional reactive code is easier to get right on the first try, maintain, and reuse.
Breaking Change: Filter updates to listWithKey child widgets so that changes to the input Map don't cause spurious updates to unaffected children. This imposes an Eq constraint on the child values.
listWithKeychild widgets so that changes to the input Map don't cause spurious updates to unaffected children. This imposes anEqconstraint on the child values.