function race(player: string) {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            resolve(player);
        }, Math.random() * 20)
    })
}

Promise.race([
    race('Bob'),
    race('Alice'),
    race('Fred'),
    race('George')
]).then(player => {
    console.log(`${player} won the race!`);
});