From 85bcb311d5ec7535b7434556fd1498aeaae14679 Mon Sep 17 00:00:00 2001
From: Kid <44045911+kidonng@users.noreply.github.com>
Date: Sat, 10 Sep 2022 14:40:30 +0000
Subject: [PATCH] Make initial value of `signal()` optional in types

---
 packages/core/src/index.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index c01da22d6..97a819238 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -251,7 +251,9 @@ function activate(signal: Signal) {
 ROOT = currentSignal = new Signal(undefined);
 ROOT._canActivate = true;
 
-export function signal<T>(value: T): Signal<T> {
+export function signal<T>(value: T): Signal<T>
+export function signal<T = undefined>(): Signal<T | undefined>
+export function signal<T>(value?: T) {
 	return new Signal(value);
 }