How to highlight a polygon when hovering on a CARTO layer

forked from ramiroaznar's block: How to highlight a polygon when hovering on a CARTO layer

<!DOCTYPE html>
<html>
  <head>
    <title>How to highlight a polygon when hovering on with CARTO.js</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
    <link rel="shortcut icon" href="https://cartodb.com/assets/favicon.ico" />
    <style>
      html, body, #map {
        height: 100%;
        padding: 0;
        margin: 0;
      }
    </style>
    <link rel="stylesheet" href="https://cartodb-libs.global.ssl.fastly.net/cartodb.js/v3/3.15/themes/css/cartodb.css" />
  </head>
  <body>

var query = $("#query").text();
            style = $("#style").text();

var map = new L.Map('map', {
          zoomControl: false,
          center: [43, 0],
          zoom: 3
        });

var sql = new cartodb.SQL({ user: 'ramirocartodb', format: 'geojson' });
        var polygon;

L.tileLayer('https://{s}.basemaps.cartocdn.com/light_nolabels/{z}/{x}/{y}.png', {
          attribution: 'CARTO'
        }).addTo(map);

cartodb.createLayer(map, {
            user_name: 'ramirocartodb',
            type: 'cartodb',
            sublayers: [{
              sql: query,
              cartocss: style
            }]
        })
         .addTo(map)
         .on('done', function(layer) {

var sublayer = layer.getSubLayer(0);

sublayer.setInteractivity("cartodb_id");
          sublayer.setInteraction(true);

sublayer.on('featureClick', function(e, pos, latlng, data) {
            showFeature(data.cartodb_id)
          });

}).on('error', function() {
          cartodb.log.log("Some error occurred.");
        });
      }

// you could use $(window).load(main);
      window.onload = main;
    </script>
  </body>
</html>

https://cartodb-libs.global.ssl.fastly.net/cartodb.js/v3/3.15/cartodb.js