If this Px contains a function, it can be extracted and the Px dropped from the signature.
If this Px contains a function, it can be extracted and the Px dropped from the signature. Every time the function
is invoked it will use the latest value of this Px
, even if you don't explicitly hold a reference to it anymore.
Example. From a Px[Int => String]
, an Int => String
can be extracted.
Get the last used value without updating.
Revision of its value.
Get the latest value, updating itself if necessary.