FlattenDeep

Since 1.4.0

递归地将嵌套元组扁平化到任意深度，生成一个包含所有元素的扁平元组。

Signature

export type FlattenDeep<T extends unknown[], Acc extends unknown[] = []> = T extends [
	infer First,
	...infer Rest,
]
	? First extends unknown[]
		? FlattenDeep<Rest, [...Acc, ...FlattenDeep<First>]>
		: FlattenDeep<Rest, [...Acc, First]>
	: Acc

Parameters

参数	描述
T	要递归扁平化的嵌套元组
Acc	用于构建结果的内部累加器（默认值：[]）

Examples

基本用法

import type { FlattenDeep } from 'uni-types'

type Result = FlattenDeep<[1, [2, [3, [4, [5]]]]]> // [1, 2, 3, 4, 5]

多层嵌套

import type { FlattenDeep } from 'uni-types'

type Result = FlattenDeep<[['a', ['b']], [['c', ['d', ['e']]]]]> // ['a', 'b', 'c', 'd', 'e']

Related

• Flatten - 扁平化嵌套元组（一层）
• Reverse - 反转元组
• Unique - 移除元组中的重复元素