Function asInstance

asInstance<C>(value, ctor): Optional<InstanceType<C>>
Narrows an unknown value to an instance of constructor type T if it is type-compatible, or returns undefined otherwise.
Type Parameters
- C extends AnyConstructor
Parameters
- value: unknown
  The value to test.
- ctor: C
Returns Optional<InstanceType<C>>
- Defined in narrowing/as.ts:137
asInstance<C>(value, ctor, defaultValue): InstanceType<C>
Narrows an unknown value to an object if it is type-compatible, or returns the provided default otherwise.
Type Parameters
- C extends AnyConstructor
Parameters
- value: unknown
  The value to test.
- ctor: C
- defaultValue: InstanceType<C>
  The default to return if value was undefined or of the incorrect type.
Returns InstanceType<C>
- Defined in narrowing/as.ts:144