Function at

at<T, K extends string | number | symbol>(
c: Writable<Cell<T>>,
key: K,
): Writable<Cell<T[K]>>
Writable field view of c.value[key] (spread-replace put). A read-only parent yields a read-only view.
Type Parameters
- T
- K extends string | number | symbol
Parameters
- c: Writable<Cell<T>>
- key: K
Returns Writable<Cell<T[K]>>
- Defined in src/core/optics.ts:10
at<T, K extends string | number | symbol>(c: Read<T>, key: K): Cell<T[K]>
Writable field view of c.value[key] (spread-replace put). A read-only parent yields a read-only view.
Type Parameters
- T
- K extends string | number | symbol
Parameters
- c: Read<T>
- key: K
Returns Cell<T[K]>
- Defined in src/core/optics.ts:11