[DVV]

(function() {

    function exchangeDataShow() {
        fetch('https://api.coinmarketcap.com/v1/ticker/?limit=20')
        .then( (responce) => {
            return responce.json();
        })
        .then( (data) => {
            let output = ' ';
            
            data.forEach(coin => {

                output += `
                    <tr>
                        <td>${coin.rank}</td>
                        <td>${coin.name}</td>
                        <td>${coin.price_usd}</td>
                        <td>${coin.24h_volume_usd}</td>
                        <td>${coin.market_cap_usd}</td>
                        <td>${coin.total_supply}</td>
                        <td>${coin.max_supply}</td>
                        <td>${coin.percent_change_1h}%</td>
                        <td>${coin.percent_change_24h}%</td>
                        <td>${coin.percent_change_7d}%</td>
                    </tr>
                `; 
            });

            document.getElementById('market-data').innerHTML = output;
            
        })
        .catch( (err) => {
            console.log(err);
        });
    }

    window.onload = exchangeDataShow();

    setInterval(() => {
        console.log('reload');
        exchangeDataShow();
    }, 5000);

})();