Function fieldOf

fieldOf<C extends AnyCellCtor>(
    parent: Cell<any>,
    key: string | number | symbol,
    Cls: C,
): InstanceType<C>
Typed field lens onto parent.value[key]. RO parent → RO derive; writable parent → bidirectional lens with spread-replace put.
Type Parameters
- C extends AnyCellCtor
Parameters
- parent: Cell<any>
- key: string | number | symbol
- Cls: C
Returns InstanceType<C>
- Defined in src/core/cell.ts:1012