From 512c30908d0f56151f61912df60cbf1859c5b138 Mon Sep 17 00:00:00 2001
From: Fredrik Liljegren <fredrik.liljegren@naturalcycles.com>
Date: Mon, 6 Oct 2025 15:20:53 +0200
Subject: [PATCH] feat: Adding RequiredProp type helper

---
 packages/js-lib/src/typeFest.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/packages/js-lib/src/typeFest.ts b/packages/js-lib/src/typeFest.ts
index bf11af15..8cf24f1f 100644
--- a/packages/js-lib/src/typeFest.ts
+++ b/packages/js-lib/src/typeFest.ts
@@ -197,6 +197,21 @@ export type ConditionalExcept<Base, Condition> = Except<Base, ConditionalKeys<Ba
  */
 export type ConditionalPick<Base, Condition> = Pick<Base, ConditionalKeys<Base, Condition>>
 
+/**
+ Makes one property of T required instead of optional.
+ @example
+ ```
+ import {RequireProp} from 'type-fest';
+ interface Example {
+   a?: string
+   b?: string
+ };
+ type ExampleA = RequireProp<Example, 'a'>;
+ //=> {a: string; b?: string};
+ ```
+ */
+export type RequireProp<T, K extends keyof T> = Required<Pick<T, K>> & T
+
 /**
  Matches any [typed array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray), like `Uint8Array` or `Float64Array`.
  */