Push

在类型系统里实现通用的 Array.push 。

例如：

type Result = Push<[1, 2], '3'> // [1, 2, '3']

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查看测试用例

import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<Push<[], 1>, [1]>>,
  Expect<Equal<Push<[1, 2], '3'>, [1, 2, '3']>>,
  Expect<Equal<Push<['1', 2, '3'], boolean>, ['1', 2, '3', boolean]>>,
]

type errors = [
  // @ts-expect-error
  Expect<Equal<Push<number[], string>, string[]>>,
  // @ts-expect-error
  Expect<Equal<Push<string[], number>, [string, number]>>,
]