ReducerOps

Prepend the value to a monoid for use in right-to-left reduction

Append the value to a monoid for use in left-to-right reduction

Unfold to the left using this value as initial seed.

Example:

0.unfoldl(i => if (i < 5) just((i+1, i.toString)) else empty[(Int, String)]).to[List]
= List(4, 3, 2, 1, 0)

Unfold to the right using this value as initial seed Example:

0.unfoldr(i => if (i < 5) just((i.toString, i+1)) else empty[(String, Int)]).to[List]
= List(0, 1, 2, 3, 4)

Convert the value into a monoid