答案
中文
实现 ReplaceAll<S, From, To> 将一个字符串 S 中的所有子字符串 From 替换为 To。
例如
type replaced = ReplaceAll<'t y p e s', ' ', ''> // 期望是 'types'
English
Implement ReplaceAll<S, From, To> which replace the all the substring From with To in the given string S
For example
type replaced = ReplaceAll<'t y p e s', ' ', ''> // expected to be 'types'
答案
type ReplaceAll<S extends string, From extends string, To extends string> = From extends ''
? S
: (S extends `${infer L}${From}${infer R}`
? `${ReplaceAll<L, From, To>}${To}${ReplaceAll<R, From, To>}`
: S);