arrow-optics / arrow.optics.extensions / MapAt
MapAt
interface ~~MapAt~~<K, V> : At<Map<K, V>, K, Option<V>>
Deprecated: Typeclass interface implementation will not be exposed directly anymore.
At instance definition for Map.
Functions
| at | Get a Lens for a structure S with focus in A at index i.open fun at(i: K): Lens<Map<K, V>, Option<V>> |
Companion Object Functions
| invoke | Operator overload to instantiate typeclass instance.operator fun <K, V> invoke(): MapAt<K, V> |
Extension Functions
| remove | Delete a value associated with a key in a Map-like containerfun <S, I, A> At<S, I, Option<A>>.remove(s: S, i: I): SLift deletion of a value associated with a key in a Map-like container fun <S, I, A> At<S, I, Option<A>>.remove(i: I): (S) -> S |