From a687d13e2874f38738002ffba598f5892cb60959 Mon Sep 17 00:00:00 2001
From: Bill Barry <after.fallout@gmail.com>
Date: Tue, 5 Jan 2021 14:30:40 -0500
Subject: [PATCH] fix(component): correct type when using strict mode

When an application that depends on ng-recaptcha has tsconfig.json

    "strictNullChecks": true

the `Parameters<T>` utility type fails if the type parameter allows `undefined`.

Closes #211
---
 src/recaptcha/recaptcha.component.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/recaptcha/recaptcha.component.ts b/src/recaptcha/recaptcha.component.ts
index b5730f6..c832f34 100644
--- a/src/recaptcha/recaptcha.component.ts
+++ b/src/recaptcha/recaptcha.component.ts
@@ -19,8 +19,10 @@ import { RECAPTCHA_SETTINGS } from "./tokens";
 
 let nextId = 0;
 
+export type NeverUndefined<T> = T extends undefined ? never : T;
+
 export type RecaptchaErrorParameters = Parameters<
-  ReCaptchaV2.Parameters["error-callback"]
+  NeverUndefined<ReCaptchaV2.Parameters["error-callback"]>
 >;
 
 @Component({