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

```ts
type Literal = string | number | bigint | boolean | undefined | null;
```

Defined in: [packages/common/src/Types.ts:153](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Types.ts#L153)

String, number, bigint, boolean, undefined, null

https://www.typescriptlang.org/docs/handbook/2/everyday-types.html#literal-types