AnyOf
约 200 字小于 1 分钟
2026-02-11
题目
在类型系统中实现类似于 Python 中 any 函数。类型接收一个数组,如果数组中任一个元素为真,则返回 true,否则返回 false。如果数组为空,返回 false。
例如:
type Sample1 = AnyOf<[1, '', false, [], {}]> // expected to be true.
type Sample2 = AnyOf<[0, '', false, [], {}]> // expected to be false.解题思路
待补充
答案
type AnyOf<T extends readonly any[]> = any验证
import type { Equal, Expect } from '@type-challenges/utils'
type cases = [
Expect<Equal<AnyOf<[1, 'test', true, [1], { name: 'test' }, { 1: 'test' }]>, true>>,
Expect<Equal<AnyOf<[1, '', false, [], {}]>, true>>,
Expect<Equal<AnyOf<[0, 'test', false, [], {}]>, true>>,
Expect<Equal<AnyOf<[0, '', true, [], {}]>, true>>,
Expect<Equal<AnyOf<[0, '', false, [1], {}]>, true>>,
Expect<Equal<AnyOf<[0, '', false, [], { name: 'test' }]>, true>>,
Expect<Equal<AnyOf<[0, '', false, [], { 1: 'test' }]>, true>>,
Expect<Equal<AnyOf<[0, '', false, [], { name: 'test' }, { 1: 'test' }]>, true>>,
Expect<Equal<AnyOf<[0, '', false, [], {}, undefined, null]>, false>>,
Expect<Equal<AnyOf<[]>, false>>,
]参考
无
