/*
 * @Author: error: error: git config user.name & please set dead value or install git && error: git config user.email & please set dead value or install git & please set dead value or install git
 * @Date: 2023-04-13 13:45:05
 * @LastEditors: error: error: git config user.name & please set dead value or install git && error: git config user.email & please set dead value or install git & please set dead value or install git
 * @LastEditTime: 2023-04-17 10:37:48
 * @FilePath: /ts-challenges/ 2946.ObjectEntries.ts
 * @Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
 */
/*
  2946 - ObjectEntries
  -------
  by jiangshan (@jiangshanmeta) #medium #object

  ### Question

  Implement the type version of ```Object.entries```

  For example

  ```typescript
  interface Model {
    name: string;
    age: number;
    locations: string[] | null;
  }
  type modelEntries = ObjectEntries<Model> // ['name', string] | ['age', number] | ['locations', string[] | null];
  ```

  > View on GitHub: https://tsch.js.org/2946
*/

/* _____________ Your Code Here _____________ */

type ObjectEntries<T> = NonNullable<{
    [key in keyof T]: [key,T[key] extends (infer R | undefined)?R:T[key]]
}[keyof T]>

// type ObjectEntries<T> = Exclude<{[K in keyof T]: [K, T[K]]}[keyof T],undefined>

type test = ObjectEntries<Partial<Model>>
/* _____________ Test Cases _____________ */
import type { Equal, Expect } from '@type-challenges/utils'

interface Model {
  name: string
  age: number
  locations: string[] | null
}

type ModelEntries = ['name', string] | ['age', number] | ['locations', string[] | null]

type cases = [
  Expect<Equal<ObjectEntries<Model>, ModelEntries>>,
  Expect<Equal<ObjectEntries<Partial<Model>>, ModelEntries>>,
  Expect<Equal<ObjectEntries<{ key?: undefined }>, ['key', undefined]>>,
  Expect<Equal<ObjectEntries<{ key: undefined }>, ['key', undefined]>>,
]

/* _____________ Further Steps _____________ */
/*
  > Share your solutions: https://tsch.js.org/2946/answer
  > View solutions: https://tsch.js.org/2946/solutions
  > More Challenges: https://tsch.js.org
*/