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3c39d073 · zhanghaozhe · a9b4b2fb · 3c39d073
Commit 3c39d073 authored Aug 07, 2020 by zhanghaozhe
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src/utils/types.ts
+8 -5

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--- a/src/utils/types.ts
+++ b/src/utils/types.ts
-export type RequireAtLeastOne<T, Keys extends keyof T = keyof T> =
-    Pick<T, Exclude<keyof T, Keys>>
-    & {
+export type RequireAtLeastOne<T, Keys extends keyof T = keyof T> = Pick<T, Exclude<keyof T, Keys>> &
+  {
    [K in Keys]-?: Required<Pick<T, K>> & Partial<Pick<T, Exclude<Keys, K>>>
-}[Keys]
\ No newline at end of file
+  }[Keys]
+
+export type RequireOnlyOne<T, Keys extends keyof T> = Pick<T, Exclude<keyof T, Keys>> &
+  {
+    [K in Keys]-?: Required<Pick<T, K>> & Partial<Record<Exclude<Keys, K>, undefined>>
+  }[Keys]