Add ability to sequence results in a Map, really useful for preserving keys but mapping values with a function that can fail.
Add ability to sequence results in a Map, really useful for preserving keys but mapping values with a function that can fail.
Specialised version of the filters for boolean results (they read better and it's actually a common use-case, eg.
Specialised version of the filters for boolean results (they read better and it's actually a common use-case, eg. imagine checking whether something is true and wanting to fail on it.