const Discord = require('discord.js');
const bot = new Discord.Client();

bot.on('message', (message) => {

    if(message.content == 'ping') {
        message.reply('pong');
    }

    if(message.content == 'xd') {
        message.reply('smh');
    }

});

bot.login('NDcwMjY2Njc3NzQxODc5Mjk2.DjWV2g.5haI90LCqwxH2X0lrdCaURVP3Q8');

if(message.content == 'xd', 'xD', 'XD', 'Xd',) {
        message.reply('pong');
}