Constructs a new Rx from an expression, that will be re-run any time an upstream Rx changes to re-calculate the value of this Rx.
Constructs a new Rx from an expression, that will be re-run any time an upstream Rx changes to re-calculate the value of this Rx.
Also injects an implicit Ctx.Owner into that block, which serves to keep
track of which other Rxs are used within that block (via their
apply
methods) so this Rx can recalculate when upstream changes.
Constructs a new Rx from an expression (which explicitly takes an
Ctx.Owner) and an optional owner
Ctx.Owner.