# IsExactOptionalPropertyTypesEnabled

`type` in `services` · v0.7.1

<https://docs.seedcord.org/packages/services/0.7.1/types/is-exact-optional-property-types-enabled>

Indicates the value of `exactOptionalPropertyTypes` compiler option.

## Declaration

```ts
type IsExactOptionalPropertyTypesEnabled = [
    (string | undefined)?
] extends [string?]
    ? false
    : true;
```