From 28b429f5ed7f4b6091f37e76d84847d5d87b6bca Mon Sep 17 00:00:00 2001
From: absidue <48293849+absidue@users.noreply.github.com>
Date: Thu, 4 Nov 2021 19:05:02 +0100
Subject: [PATCH] Clean up unneeded export, variables and assignment after
 reverse()

---
 play-dl/YouTube/classes/LiveStream.ts |  2 +-
 play-dl/YouTube/utils/cipher.ts       | 11 ++++-------
 play-dl/YouTube/utils/extractor.ts    |  5 ++---
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/play-dl/YouTube/classes/LiveStream.ts b/play-dl/YouTube/classes/LiveStream.ts
index ce29889..4a6fc47 100644
--- a/play-dl/YouTube/classes/LiveStream.ts
+++ b/play-dl/YouTube/classes/LiveStream.ts
@@ -207,7 +207,7 @@ export class Stream {
             this.stream.push(c);
         });
 
-        stream.once('error', async (err) => {
+        stream.once('error', async () => {
             this.cleanup();
             await this.retry();
             this.timer.reuse();
diff --git a/play-dl/YouTube/utils/cipher.ts b/play-dl/YouTube/utils/cipher.ts
index b2bf2f7..d7d9434 100644
--- a/play-dl/YouTube/utils/cipher.ts
+++ b/play-dl/YouTube/utils/cipher.ts
@@ -42,7 +42,7 @@ const swap_regexp = new RegExp(`(?:^|,)(${key_js})${swap_function}`, 'm');
  * @param body body data of html5player.
  * @returns Array of tokens.
  */
-export function js_tokens(body: string) {
+function js_tokens(body: string) {
     const function_action = function_regexp.exec(body);
     const object_action = obj_regexp.exec(body);
     if (!function_action || !object_action) return null;
@@ -104,7 +104,7 @@ function deciper_signature(tokens: string[], signature: string) {
                 sig = swappositions(sig, pos);
                 break;
             case 'rv':
-                sig = sig.reverse();
+                sig.reverse();
                 break;
             case 'sl':
                 pos = parseInt(token.slice(2));
@@ -137,11 +137,9 @@ function swappositions(array: string[], position: number) {
  * @returns void
  */
 function download_url(format: formatOptions, sig: string) {
-    let decoded_url;
     if (!format.url) return;
-    decoded_url = format.url;
 
-    decoded_url = decodeURIComponent(decoded_url);
+    const decoded_url = decodeURIComponent(format.url);
 
     const parsed_url = new URL(decoded_url);
     parsed_url.searchParams.set('ratebypass', 'yes');
@@ -168,9 +166,8 @@ export async function format_decipher(formats: formatOptions[], html5player: str
             delete format.signatureCipher;
             delete format.cipher;
         }
-        let sig;
         if (tokens && format.s) {
-            sig = deciper_signature(tokens, format.s);
+            const sig = deciper_signature(tokens, format.s);
             download_url(format, sig);
             delete format.s;
             delete format.sp;
diff --git a/play-dl/YouTube/utils/extractor.ts b/play-dl/YouTube/utils/extractor.ts
index 30cdd49..6534d59 100644
--- a/play-dl/YouTube/utils/extractor.ts
+++ b/play-dl/YouTube/utils/extractor.ts
@@ -375,7 +375,6 @@ function parseDuration(duration: string): number {
  * @returns token
  */
 export function getContinuationToken(data: any): string {
-    const continuationToken = data.find((x: any) => Object.keys(x)[0] === 'continuationItemRenderer')
-        ?.continuationItemRenderer.continuationEndpoint?.continuationCommand?.token;
-    return continuationToken;
+    return data.find((x: any) => Object.keys(x)[0] === 'continuationItemRenderer')?.continuationItemRenderer
+        .continuationEndpoint?.continuationCommand?.token;
 }