L0v3ch4n

外观

SnakeCase

约 107 字小于 1 分钟

2026-02-11

题目

Create a SnakeCase<T> generic that turns a string formatted in camelCase into a string formatted in snake_case.

A few examples:

type res1 = SnakeCase<"hello">; // => "hello"
type res2 = SnakeCase<"userName">; // => "user_name"
type res3 = SnakeCase<"getElementById">; // => "get_element_by_id"

解题思路

待补充

答案

type SnakeCase<T> = any

验证

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

type cases = [
  Expect<Equal<SnakeCase<'hello'>, 'hello'>>,
  Expect<Equal<SnakeCase<'userName'>, 'user_name'>>,
  Expect<Equal<SnakeCase<'getElementById'>, 'get_element_by_id'>>,
  Expect<Equal<SnakeCase<'getElementById' | 'getElementByClassNames'>, 'get_element_by_id' | 'get_element_by_class_names'>>,
]

参考

无