arrow-optics / arrow.optics.extensions / MapIndex
MapIndex
interface ~~MapIndex~~<K, V> : Index<Map<K, V>, K, V>
Deprecated: Typeclass interface implementation will not be exposed directly anymore.
Index instance definition for Map.
Functions
| index | Get Optional focus A for a structure S at index i.open fun index(i: K): Optional<Map<K, V>, V> |
Companion Object Functions
| invoke | Operator overload to instantiate typeclass instance.operator fun <K, V> invoke(): MapIndex<K, V> |