From 2f522b9140454082cab3e43e62897f107caff799 Mon Sep 17 00:00:00 2001
From: absidue <48293849+absidue@users.noreply.github.com>
Date: Wed, 22 Dec 2021 18:14:48 +0100
Subject: [PATCH] Add null, undefined and string type check to the YouTube info
 functions

---
 play-dl/YouTube/utils/extractor.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/play-dl/YouTube/utils/extractor.ts b/play-dl/YouTube/utils/extractor.ts
index 1d7addf..d69fe0c 100644
--- a/play-dl/YouTube/utils/extractor.ts
+++ b/play-dl/YouTube/utils/extractor.ts
@@ -100,6 +100,8 @@ export function extractID(url: string): string {
  * @returns Video Basic Info {@link InfoData}.
  */
 export async function video_basic_info(url: string, options: InfoOptions = {}): Promise<InfoData> {
+    if (url === null || url === undefined || typeof url !== 'string')
+        throw new Error('url parameter is not a URL string or a string of HTML');
     let body: string;
     if (options.htmldata) {
         body = url;
@@ -205,6 +207,8 @@ export async function video_basic_info(url: string, options: InfoOptions = {}):
  * @returns Deciphered Video Info {@link StreamInfoData}.
  */
 export async function video_stream_info(url: string, options: InfoOptions = {}): Promise<StreamInfoData> {
+    if (url === null || url === undefined || typeof url !== 'string')
+        throw new Error('url parameter is not a URL string or a string of HTML');
     let body: string;
     if (options.htmldata) {
         body = url;