index.js

const Eris = require("eris")
require("dotenv").config()
const bot = new Eris(process.env.TOKEN)

bot.commands = new Map()

try {
	let commands = require("fs").readdirSync("./commands").filter(f => f.split(".").pop() === "js")
	if(commands.length === 0) {
		console.log("No commands to load!\n")
	} else {
		let c = 0;
		for(let i = 0; i < commands.length; i++) {
			const cmd = commands[i].slice(0, -3)
			try {
				const props = require(`./commands/${commands[i]}`)
				bot.commands.set(props.info.name, props)
				console.log(`Successfully loaded command ${cmd}`)
				c++
			} catch(err) {
				const trace = err.stack.toString().split("\n").slice(0, 3).join("\n")
				console.log(`An error occurred while trying to load ${cmd}\n${trace}`)
				console.log(`Could not load the command ${cmd}`)
			}
		}
		console.log(`Loaded ${c} commands.\n`)
	}
} catch(err) {
	console.error(err)
}

try {
	let files = require("fs").readdirSync("./events").filter(f => f.split(".").pop() === "js")
	if(files.length === 0) {
		console.log("No events to load!")
	} else {
		let e = 0;
		for(let i = 0; i < files.length; i++) {
			const _event = files[i].slice(0, -3)
			try {
				const event = require(`./events/${files[i]}`)
				bot.on(_event, event.bind(null, bot))
				console.log(`Successfully loaded event ${_event}.`)
				e++
			} catch(err) {
				const trace = err.stack.toString().split("\n").slice(0, 3).join("\n")
				console.log(`An error occurred while trying to load ${_event}\n${trace}`)
				console.log(`Could not load the event ${_event}.`)
			}
		}
		console.log(`Loaded ${e} events.`)
	}
} catch(err) {
	console.error(err)
}

bot.connect()

Map.prototype.filter = function(fn, thisArg) {
	if (thisArg) fn = fn.bind(thisArg);
    const results = new Map();
    for (const [key, val] of this) {
    	if (fn(val, key, this)) results.set(key, val);        
    }
    return results;
      
}

Map.prototype.map = function(fn, thisArg) {
    if (thisArg) fn = fn.bind(thisArg);
    const arr = new Array(this.size);
    let i = 0;
    for (const [key, val] of this) arr[i++] = fn(val, key, this);
    return arr;
}