如何在 typescript 中輸入 object 的 object

Question

如何鍵入以下數據。 我必須輸入進度 object

const progress = {
   "1": {
      topic: [1,3,4],
      assessment: [1,2,4,],
   },
   "2": {
      topic: [1,3,4],
      assessment: [1,2,4,],
   },
   ....
}

Answer 1

有內置類型 - Record<K, V>

type Obj = Record<string, {topic: number[], assessment: number[]}>