upd

README.md

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-# yt-hide-long
-

meta.kdl

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+title        "yt-hide-long"
+description  "Hide LONG (over 2:00:00 – two hours) videos on YouTube's pages"
+media-type   "userscript"
+tags         "scripts"  "js"  "youtube"
+license      "CC0"
+homepage     "https://dym.sh/yt-hide-long/"
+source       "https://source.garden/scripts/yt-hide-long/"

readme.md

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+# yt-hide-long
+
+> Hide LONG (over 2:00:00 – two hours) videos on YouTube's pages
+
+## install
+
+1. get [Tampermonkey](https://tampermonkey.net)
+2. visit https://source.garden/scripts/yt-hide-long/raw/branch/latest/script.user.js
+3. refresh the youtube page

script.meta.js

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+// ==UserScript==
+// @name		YouTube: Hide LONG Videos
+// @namespace	https://source.garden
+// @version		1.0
+// @license		CC0
+// @description	Hide LONG (over 2:00:00 – two hours) videos on YouTube's pages
+// @author		Dym Sohin <re@dym.sh>
+// @match		https://*.youtube.com/*
+// @match		https://youtube.com/*
+// @noframes
+// @downloadURL	https://source.garden/scripts/yt-hide-long/raw/branch/latest/script.user.js
+// @updateURL	https://source.garden/scripts/yt-hide-long/raw/branch/latest/script.meta.js
+// ==/UserScript==

script.user.js

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+// ==UserScript==
+// @name		YouTube: Hide LONG Videos
+// @namespace	https://source.garden
+// @version		1.0
+// @license		CC0
+// @description	Hide LONG (over 2:00:00 – two hours) videos on YouTube's pages
+// @author		Dym Sohin <re@dym.sh>
+// @match		https://*.youtube.com/*
+// @match		https://youtube.com/*
+// @noframes
+// @downloadURL	https://source.garden/scripts/yt-hide-long/raw/branch/latest/script.user.js
+// @updateURL	https://source.garden/scripts/yt-hide-long/raw/branch/latest/script.meta.js
+// ==/UserScript==
+
+(function() {
+	'use strict'
+
+	function removeUpcomingVideos(){
+		document
+			.querySelectorAll( `ytd-item-section-renderer` )
+			.forEach( e =>
+			{
+				const is_long = e.querySelector( `badge-shape[aria-label*="hours,"]` )
+				if( is_long )
+				{
+					e.style.display = 'none'
+				}
+			})
+	}
+ 
+	const observer = new MutationObserver(removeUpcomingVideos)
+	observer.observe(
+		document.querySelector('#page-manager')
+		, { childList:true, subtree:true }
+	)
+
+})()