MapFunctions
Value members
Concrete methods
Grab a value out of Map if it's present. Otherwise evaluate a value to be placed at that key in the Map.
Grab a value out of Map if it's present. Otherwise evaluate a value to be placed at that key in the Map.
As with Map.updated, but resolve a collision with f. The
first argument is guaranteed to be from m1.
As with Map.updated, but resolve a collision with f. The
first argument is guaranteed to be from m1.
Collect only elements with matching keys, joining their
associated values with f.
Collect only elements with matching keys, joining their
associated values with f.
Exchange keys of m according to f. Result may be smaller if
f maps two or more Ks to the same K2, in which case the
resulting associated value is an arbitrary choice.
Exchange keys of m according to f. Result may be smaller if
f maps two or more Ks to the same K2, in which case the
resulting associated value is an arbitrary choice.
Union, resolving collisions with f, where the first arg is
guaranteed to be from m1, the second from m2.
Union, resolving collisions with f, where the first arg is
guaranteed to be from m1, the second from m2.
- Note
iff
fgives rise to a scalaz.Semigroup, so doesunionWith(_, _)(f).