isTypeSubTypeOf

Callable

• isTypeSubTypeOf(schema: GraphQLSchema, maybeSubType: GraphQLType, superType: GraphQLType): boolean

---

• Provided a type and a super type, return true if the first type is either equal or a subset of the second super type (covariant).

  ---

  Parameters

  • schema: GraphQLSchema

  • maybeSubType: GraphQLType

  • superType: GraphQLType

  Returns boolean