# Type Alias: ChallengeData

> **ChallengeData** = `Record`\<`string`, `string` \| `number` \| `boolean` \| `null`\>

Defined in: [link.ts:2](https://github.com/debuffjp/debuff/blob/3e11cb8bf00adfd52d063977f9e3328e72e765c5/packages/share/src/link.ts#L2)

Anything JSON can hold: a seed, a level id, a score to beat.