---
url: https://lit-ui-router.dev/api/ui-router-registry/type-aliases/ParamArgs.md
---
[ui-router-registry](../index.md) / ParamArgs

# Type Alias: ParamArgs\<N, Options>

```ts
type ParamArgs<N, Options> = IsRegistered extends true ? [RequiredKeys<ParamsOf<N>>] extends [never] ? [params?: ParamsOf<N>, options?: Options] : [params: ParamsOf<N>, options?: Options] : [params?: RawParams, options?: Options];
```

Defined in: [registry.ts:289](https://github.com/simshanith/lit-ui-router/blob/ddf02fc88fff5fb67c4114e4f613e773e2b76df2/packages/ui-router-registry/src/registry.ts#L289)

The arguments after a state name: params are required exactly when the
state has a required param.

## Type Parameters

| Type Parameter |
| ------ |
|  `N` *extends* [`StateName`](StateName.md) |
|  `Options` |