Aggregation - Row Count

Full Code

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  <title>ZingGrid: Simple Grid</title>
  <script nonce="undefined" src="https://cdn.zinggrid.com/zinggrid.min.js"></script>
  <style>
    .zg-body {
      background-color: #e6e6e6;
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    zg-foot zg-cell:nth-of-type(2),
    zg-foot zg-cell:nth-of-type(3) {
      background: #fffced;
      border-left: 1px solid #fff0a3;
    }

    zg-foot zg-cell:nth-of-type(3) {
      border-right: 1px solid #fff0a3;
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    zing-grid[loading] {
      height: 414px;
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  </style>
</head>

<body class="zg-body">
  <zing-grid caption="Top Cryptocurrencies" viewport-stop data='[{
        "id": "bitcoin",
        "name": "Bitcoin",
        "symbol": "BTC",
        "rank": "1",
        "price_usd": "6510.57322669",
        "price_btc": "1.0",
        "24h_volume_usd": "4058714374.46",
        "market_cap_usd": "112425633191",
        "available_supply": "17268162.0",
        "total_supply": "17268162.0",
        "max_supply": "21000000.0",
        "percent_change_1h": "-0.4",
        "percent_change_24h": "0.11",
        "percent_change_7d": "0.49",
        "last_updated": "1536971121"
      },
      {
        "id": "ethereum",
        "name": "Ethereum",
        "symbol": "ETH",
        "rank": "2",
        "price_usd": "210.385950117",
        "price_btc": "0.03245263",
        "24h_volume_usd": "2219293714.75",
        "market_cap_usd": "21451438471.0",
        "available_supply": "101962315.0",
        "total_supply": "101962315.0",
        "max_supply": null,
        "percent_change_1h": "-1.84",
        "percent_change_24h": "-0.59",
        "percent_change_7d": "-3.71",
        "last_updated": "1536971072"
      },
      {
        "id": "ripple",
        "name": "XRP",
        "symbol": "XRP",
        "rank": "3",
        "price_usd": "0.2772190275",
        "price_btc": "0.00004272",
        "24h_volume_usd": "268261690.279",
        "market_cap_usd": "11035831425.0",
        "available_supply": "39809069106.0",
        "total_supply": "99991841593.0",
        "max_supply": "100000000000",
        "percent_change_1h": "-0.72",
        "percent_change_24h": "-1.29",
        "percent_change_7d": "-5.6",
        "last_updated": "1536971104"
      },
      {
        "id": "bitcoin-cash",
        "name": "Bitcoin Cash",
        "symbol": "BCH",
        "rank": "4",
        "price_usd": "449.549660414",
        "price_btc": "0.06934432",
        "24h_volume_usd": "313814593.893",
        "market_cap_usd": "7799068477.0",
        "available_supply": "17348625.0",
        "total_supply": "17348625.0",
        "max_supply": "21000000.0",
        "percent_change_1h": "-0.94",
        "percent_change_24h": "-3.39",
        "percent_change_7d": "-10.48",
        "last_updated": "1536971070"
      },
      {
        "id": "eos",
        "name": "EOS",
        "symbol": "EOS",
        "rank": "5",
        "price_usd": "5.2702520505",
        "price_btc": "0.00081295",
        "24h_volume_usd": "600466470.371",
        "market_cap_usd": "4776140189.0",
        "available_supply": "906245118.0",
        "total_supply": "1006245120.0",
        "max_supply": null,
        "percent_change_1h": "-1.01",
        "percent_change_24h": "-2.72",
        "percent_change_7d": "3.52",
        "last_updated": "1536971072"
      }]'>
    <zg-colgroup>
      <zg-column index="name"></zg-column>
      <zg-column index="price_usd" header="Price (USD)" type="currency" foot-cell="count"></zg-column>
      <zg-column index="percent_change_24h" header="Percent Change (24h)" type="number" foot-cell="count"></zg-column>
    </zg-colgroup>
  </zing-grid>
  <script>
    ZingGrid.setLicense(['26ccbfec16b8be9ee98c7d57bee6e498']);
  </script>
</body>

</html>