yt-shorts-autoplay.js

// ==UserScript==
// @name     Youtube Shorts autoscroll
// @version  v0.0.1
// @grant    none
// @author   Subhrajit Prusty
// @description Just auto scroll through youtube shorts
// @include  https://www.youtube.com/shorts/*
// ==/UserScript==

(function () {
    setInterval(function () {
        player = document.querySelector(".html5-video-player");
        if (!player) {
            console.log("======== No Active player, skipping ======= ")
            return
        }
        video = player.querySelector("video") // to get video
        down = document.querySelector("#navigation-button-down")
        video.loop = false
        
        if (video.currentTime === video.duration) {
            actualButton = down.getElementsByClassName("style-scope ytd-shorts")
            if (actualButton.length > 0) {
                console.log("======== Playing next video ======= ")
                actualButton[0].click()
            }
        }
    }, 1000);
})();