Function propOrUndefNaked

propOrUndefNaked<T>(): (<K>(key) => ((x) => undefined | WithoutOptValues<T[K]>))
Similar to Opt.propOrUndef, but it is designed for naked objects (not wrapped in opt).
Type Parameters
- T extends object | EmptyValue
Returns (<K>(key) => ((x) => undefined | WithoutOptValues<T[K]>))
- - <K>(key): ((x) => undefined | WithoutOptValues<T[K]>)
  - Type Parameters
    - K extends string | number | symbol
    Parameters
    - key: K
    Returns ((x) => undefined | WithoutOptValues<T[K]>)
    - - (x): undefined | WithoutOptValues<T[K]>
      - Parameters
        x: EmptyValue | T
        Returns undefined | WithoutOptValues<T[K]>
Example
```
interface A {x?: number;}

const aFull: A = {x: 4};
propOrUndef<A>()('x')(aFull); // 4

const aEmpty: A = {};
propOrUndef<A>()('x')(aEmpty); // undefined
```
- Defined in Opt.ts:2853

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