Trying to get Shuffle Playlist to work

JavaScript
18

Improving This
Single Player

    let oldNumber = 0;
    let NewNumber = 10;

    function newRandomNumber(min, max) {
        oldNumber = NewNumber;
        NewNumber = Math.floor(Math.random() * max) + min;
        if (NewNumber == oldNumber) {
            newRandomNumber(min, max);
        } else {
            return NewNumber;
        }
    }

To This:
Single Player

    let newNumber;

    function newRandomNumber(min, max) {
        newNumber = Math.floor(Math.random() * max) + min;
            return newNumber;
    }

Improved Further Here:
Single Player
https://jsfiddle.net/qnbyg5x9/142/

    function newRandomNumber(min, max) {
        const newNumber = Math.floor(Math.random() * max) + min;
        return newNumber;
    }

Improved Even Further:
I think this may be as far as it can be improved.

Single Player
https://jsfiddle.net/qnbyg5x9/143/

function newRandomNumber(min, max) {
    return Math.floor(Math.random() * max) + min;
}

I’m having issues here:

Single + Grid Player
Not Working:
https://jsfiddle.net/cgrw42zy/12/

This is how it works in the single player, no grid.
https://jsfiddle.net/qnbyg5x9/143/

Also, the top player works if you remove this piece from the code:
The only reason why it disappears is because it’s not working.
index: newRandomNumber(0, 10),

Undeclared ‘newRandomNumber’.
index: newRandomNumber(0, 10),

I don’t know how that will be resolved.

newRandomNumber is in 2 different functions where they are not able to connect to each other.

They would need to be inside the same function I think.

newRandomNumber is here:

const videoPlayer = (function makeVideoPlayer() {
    "use strict";

    function newRandomNumber(min, max) {
        return Math.floor(Math.random() * max) + min;
    }

newRandomNumber is here:

function loadPlayer(opts) {
    "use strict";

loadPlayer({
    target: ".jacketc",
    width: 600,
    height: 338,
    index: newRandomNumber(0, 10),
    loop: true,
    listType: "playlist",
    list: "TLGGCePU6hOj6WQyMjEyMjAxOA"
});

Full Code:

    function onPlayerStateChange(event) {
        const player = event.target;
        player.setShuffle(true);
        if (event.data === YT.PlayerState.PLAYING) {
            const otherVideos = (video) => video !== player;
            const pauseVideo = (video) => video.pauseVideo();
            players.filter(otherVideos).forEach(pauseVideo);
        }
        const playerVars = player.b.b.playerVars;
        if (playerVars.loop && event.data === YT.PlayerState.ENDED) {
            player.seekTo(playerVars.start);
        }
    }

    function newRandomNumber(min, max) {
        return Math.floor(Math.random() * max) + min;
    }

    function addVideo(video, settings) {
        players.push(new YT.Player(video, Object.assign({
            videoId: video.dataset.id,
            host: "https://www.youtube-nocookie.com",
            events: {
                "onReady": onPlayerReady,
                "onStateChange": onPlayerStateChange
            }
        }, settings)));
        console.log(settings);
    }

    function init(video, settings) {
        load.js("https://www.youtube.com/player_api").then(function() {
            YT.ready(function() {
                addVideo(video, settings);
            });
        });
    }
    return {
        init
    };
}());

function loadPlayer(opts) {
    "use strict";
    const show = (el) => el.classList.remove("hide");

    function initPlayer(wrapper) {
        const video = wrapper.querySelector(".video");
        opts.width = opts.width || 198;
        opts.height = opts.height || 198;
        opts.autoplay = 1;
        opts.controls = 1;
        opts.rel = 0;
        opts.iv_load_policy = 3;
        opts.fs = 0;
        opts.disablekb = 1;

        function paramInOpts(settings, param) {
            if (opts[param] !== undefined) {
                settings[param] = opts[param];
            }
            return settings;
        }
        const settingsParams = ["width", "height", "host", "videoid"];
        const settings = settingsParams.reduce(paramInOpts, {});
        const playerVarsParams = ["autoplay", "index", "cc_load_policy",
        "controls", "disablekb", "end", "fs", "iv_load_policy", "list",
        "listType", "loop", "playlist", "rel", "start"];
        settings.playerVars = playerVarsParams.reduce(paramInOpts, {});
        videoPlayer.init(video, settings);
    }

    function coverClickHandler(evt) {
        const wrapper = evt.currentTarget.nextElementSibling;
        show(wrapper);
        initPlayer(wrapper);
    }
    const cover = document.querySelector(opts.target);
    cover.addEventListener("click", coverClickHandler);
}
loadPlayer({
    target: ".jacketc",
    width: 600,
    height: 338,
    index: newRandomNumber(0, 10),
    loop: true,
    listType: "playlist",
    list: "TLGGCePU6hOj6WQyMjEyMjAxOA"
});