A basic paginator for Discord.js

paginator.js

createPaginator = async (sourceMessage, message, next, prev) => {
    const emojinext = "▶";
    const emojiprev = "◀";
    const emojistop = "❌";
    try {
        await message.react(emojiprev);
        await message.react(emojinext);
        // await message.react(emojistop);
        let handle = (reaction, user) => {
            if (reaction.message.id !== message.id)
                return;
            if (user.id !== sourceMessage.author.id ||
                reaction.emoji.name !== emojinext &&
                reaction.emoji.name !== emojiprev &&
                reaction.emoji.name !== emojistop)
                return;
            switch (reaction.emoji.name) {
                case emojinext:
                    next();
                    break;
                case emojiprev:
                    prev();
                    break;
                case emojistop:
                    message.delete().catch(e => console.log(e));
                    sourceMessage.delete().catch(e => console.log(e));
                    break;
                default:
                    console.log('Something went processing emoji reactions.');
                    break;
            }
        };
        client.on("messageReactionAdd", handle);
        client.on("messageReactionRemove", handle);
    } catch (error) {
        console.log('Error involving reaction collector.');
    }
};
let items = ["howdy","partner","how","are","you","?"];
let i, j, chunk, chunkSize = 10;
let pages = [];
for (i = 0, j = items.length; i < j; i += chunkSize) {
    chunk = items.slice(i, i + chunkSize);
    let embed = new discord.RichEmbed()
        .setTitle("Items")
        .setColor("BLACK")
        .setDescription("")
        .setFooter(`Page ${pages.length + 1} of ${Math.floor(items.length / chunkSize) + 1}`);
    for (let item of chunk)
        embed.description += `Item is "${item}"\n`;
    pages.push(embed);
}
let index = 1;
let msg = await message.channel.send(pages[index]);
createPaginator(message, msg,
    () => {
        index = ++index >= pages.length ? 0 : index;
        msg.edit(pages[index]);
    },
    () => {
        index = --index < 0 ? pages.length - 1 : index;
        msg.edit(pages[index]);
    }
);