[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Eq](https://evolu.dev/docs/api-reference/common/Eq) › eqUndefined

```ts
const eqUndefined: Eq<undefined> = eqSameValue;
```

Defined in: [packages/common/src/Eq.ts:101](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Eq.ts#L101)

An [Eq](https://evolu.dev/docs/api-reference/common/Eq/type-aliases/Eq) for `undefined`.