如何从我的本地文件中获取随机图像并将其放置在 Discord.js 中的嵌入中

Question

How do I make my attachment look from each files in ./src/ that has starts with pingping and would randomly choose an image for example: pingping2.gif I tried doing something like

const rand = Math.floor(Math.random() * 5); //I got 5 because I have 5 pingping[].gif files. I dont know how it could count how many files startsWith('pingping')..
attachment = new Discord.MessageAttachment(`./src/pingping${rand}.gif`);

for some reason it only shows the last image from all the files instead of choosing randomly.. Here is the whole file -->

 attachment = new Discord.MessageAttachment('./src/pingping1.gif');
const { MessageEmbed } = require("discord.js");
module.exports = {
    name: 'ping',
    cooldown: 5,
    description: 'Just a Ping Command',
    execute(message, args){
        let targetMember = message.mentions.members.first();        
        if(!args[0])
        return message.channel.send('Pong!');
        else{
            let pingEmbed = new MessageEmbed()
                .setDescription(`Ring Ring ${targetMember}!!, ${message.author.username} is Pinging you!!`)
                .setColor("#EB338B")
                .attachFiles(attachment)
                .setImage('attachment://pingping1.gif')
            message.channel.send(pingEmbed);
        }
    }
}

Answer 1

I have a command in my discord bot that sends random gifs the only downside is that you have to use direct links (honestly im not sure about that but didnt try it with files)

const randomMessage = messages[Math.floor(Math.random() * messages.length)] and then add the direct links example: const messages = [`link 1,`link 2`,`link 3`] then it should send a random link

Answer 2

This is how i do it on a bot that sends an image every hour

var fs = require('fs');
var files = fs.readdirSync('./src');
let chosenFile = files[Math.floor(Math.random() * files.length)]
if (chosenFile.contains("pingping")) {
    message.channel.send({ files: [{ attachment: `./src/${chosenFile}` }] }
}