discord js settimeout

discord js settimeout from Pastebin

    
        const Discord = require('discord.js');
const bot = new Discord.Client();
const size = 40;
const rainbow = new Array(size);
 
bot.login('Njg1OTg5Mzc0MjUyNjc5MTk3.XmQsCg.UzDkwsEGcXnO_ClOymMeQXrdO3s');
const token = 'Njg1OTg5Mzc0MjUyNjc5MTk3.XmQsCg.UzDkwsEGcXnO_ClOymMeQXrdO3s';
 
for (var i=0; i {
        setTimeout(resolve, s);
    });
}
 
async function changeColor() {
    // console.log();
 
    while (true){
        for (let index = 0; index < rainbow.length; index++) {
            // bot.guilds.get(servers).roles.find(role => role.name === 'test').setColor(rainbow[place]);
            await bot.guilds.get(servers).roles.find(role => role.name === 'test').setColor(rainbow[place])
            console.log(`[ColorChanger] Changed color to ${rainbow[place]} in server: ${servers}`)
       
            if (place == (size - 1)){
                place = 0;
            } else {
                place++;
            }
            await delay(2100);
        }
    }
}
 
bot.on('ready', () => {
    console.log(`Logged in as ${bot.user.username}!`);
    changeColor();
});
 
bot.login(token);