Infinite scroll of random pages on Wiktionary and Wikiquote by creating iframes below the current scroll position as needed.

Wiktionary-Wikiquote Infinite Scroll.user.js

// ==UserScript==
// @name         Wiktionary/Wikiquote Infinite Scroll
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Adds an infinite scroll of random pages to Wiktionary and Wikiquote.
// @author       VidFerris (https://github.com/VidFerris)
// @match        https://en.wiktionary.org/*
// @match        https://en.wikiquote.org/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=wiktionary.org
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    function resizeIFrames() {
        var iframes = document.querySelectorAll("iframe");
        for( var i = 0; i < iframes.length; i++) {
            heightSetter( iframes[i] );
        }
    }


     function inIframe () {
        try {
            if(window.self !== window.top){
                console.log('in iframe!')
            }else{
                console.log('not in iframe!')
            }
            return window.self !== window.top;
        } catch (e) {
            return true;
        }
    }


    function heightSetter(ifrm){
        try{
            ifrm.style.height = ifrm.contentWindow.document.documentElement.getElementsByClassName('mw-body')[0].scrollHeight+50 +"px";
            //ifrm.style.width = ifrm.contentWindow.document.documentElement.getElementsByClassName('mw-body')[0].scrollWidth+50 +"px";
        } catch (e) {
            return;
        }
    }


    function addIframeIfNeeded () {
        if(!inIframe()){
            if(document.getElementsByTagName("body")[0].parentElement.scrollHeight<document.documentElement.clientHeight*5+document.documentElement.scrollTop){
                var ifrm, src;
                ifrm = document.createElement("iframe");
                if(window.location.href.includes("wiktionary.org")){
                    src = "https://en.wiktionary.org/wiki/Special:RandomInCategory/English_lemmas#English";
                }else if (window.location.href.includes("wikiquote.org")){
                    src = "https://en.wikiquote.org/wiki/Special:Random";
                }

                ifrm.setAttribute("src", src);
                ifrm.style.width = "100vw";
                ifrm.style.height = "5vh";
                ifrm.style.border = "0";
                ifrm.scrolling = "no";
                //document.getElementById("content").parentNode.insertBefore(ifrm, document.getElementById("mw-navigation"));
                window.top.document.getElementsByClassName("mediawiki")[0].parentNode.appendChild(ifrm)
                setTimeout(resizeIFrames,1500);
            }
        }
    }

    window.addEventListener('DOMContentLoaded', (event) => {
        console.log('DOM fully loaded and parsed');
    });

    setTimeout(startup,2000);

    setInterval(resizeIFrames,1000);

    function startup () {
        if(!inIframe()){
            addIframeIfNeeded();
            setInterval(addIframeIfNeeded,1000);
        }
    }


var styles = `

#mw-head-base, #mw-page-base, #mw-head, #mw-panel, #mw-navigation, #footer, #siteNotice, .mw-footer-container, .vector-column-start, #p-lang-btn, .vector-header-container, .vector-page-toolbar{
    display: none;
}


.vector-toc-landmark {
  display: none !important;
}

.mediawiki {
  height: auto;
}

#content {
  margin: 0;
}

@media screen {
  body {
    background-color: #8a8a8a;
  }
}

body {
  padding-bottom: 50px;
}

.mw-page-container {
  padding: 0 !important;
}

`

var styleSheet = document.createElement("style")
styleSheet.innerText = styles
document.head.appendChild(styleSheet)

})();

Running the userscript should make pages on Wiktionary and Wikiquote look like this when you scroll:

also I only posted this because https://github.com/IsaacGemal/wikitok made the top of hackernews and it occurred to me that this userscript might be useful for other people :Y