prop (method)

prop

• prop<K>(_key): OptSafe<T[K]>

• Maps property of a wrapped object.

  Type Parameters

  • K extends string | number | symbol

  Parameters

  • _key: K

  Returns OptSafe<T[K]>

  Example

  const a = {x: 1};
  const xValue = opt(a).prop('x').orCrash('missing prop x'); // 1
  

  See

  • prop
  • Opt.propOrCrash