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

```ts
type NonEmptyReadonlyArray<T> = readonly [T, ...ReadonlyArray<T>];
```

Defined in: [packages/common/src/Array.ts:172](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/Array.ts#L172)

A readonly array with at least one element.