EndsWith

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题目

实现EndsWith<T, U>,接收两个 string 类型参数,然后判断T是否以U结尾,根据结果返回true或false

例如:

type a = EndsWith<"abc", "bc">; // expected to be true
type b = EndsWith<"abc", "abc">; // expected to be true
type c = EndsWith<"abc", "d">; // expected to be false

解答

同 StartsWith，反向推导即可：

type EndsWith<T extends string, U extends string> = T extends `${infer _}${U}`
  ? true
  : false;