dots on a map: geocoding

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    #output { 
      width: 650px; height: 100%; overflow-y: scroll;
    }
    
    #csvout {
      width: 280px;
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
    }
    
    .row {
      font-family: Courier;
      font-size: 12px;
      float: left;
      clear: left;
      margin: 5px;
    }
    .original {
      float: left;
      border: 1px solid black;
      padding: 3px 5px;;
    }
    .geo {
      float:left;
      margin: 4px;
      padding: 2px 4px;
      border: 1px solid #efefef;
      cursor: pointer;
    }
    .geo:hover {
      background-color: #f3e4cd;
    }
    button {
      position: absolute;
      top: 5px;
      right: 285px;
    }
  </style>
</head>

<body>
  <div id="output"></div>
  <textarea id="csvout"></textarea>
  <button>Save</button>
  <script>
    d3.csv("the-counted.csv", function(err, data) {
      
      var test = data;
      
      test.forEach(function(d, i) {
        var search = d.streetaddress + ", " + d.city + ", " + d.state;
        d.search = search;
        
        setTimeout(function() {
          var url = "https://search.mapzen.com/v1/search?text=" + search + "&api_key=search-4AcEJyM";
          d3.json(url, function(err, geo) {
            console.log("GEO", d, geo)
            d.geo = geo;
            
            render(test);
          })          
        }, 1000 + i * 200)        
      })
      render(test);
      
      d3.select("button").on("click", function() {
        var rows = []
        var unprocessed = []
        test.forEach(function(d) {
          var r = JSON.parse(JSON.stringify(d))
          var selected = r.selected;

delete r.geo;
          delete r.selected;
          if(selected) {
            r.lat = selected.geometry.coordinates[1]
            r.lng = selected.geometry.coordinates[0]
            rows.push(r)
          } else {
            unprocessed.push(r)
          }
          
        })
        var csv = d3.csv.format(rows)
        d3.select("#csvout").text(csv)
        console.log("processed", rows.length)
        console.log("unprocessed", unprocessed.length)
      })

})
    
    function render(data) {
      var rows = d3.select("#output").selectAll("div.row")
        .data(data)
      var rowEnter = rows.enter().append("div").classed("row", true)
      
      rowEnter.append("div").classed("original", true)
        .text(function(d) { return d.search })
        .on("click", function(d) {
          console.log(d);
        })
      
      var geos = rows
        .filter(function(d) { return !!d.geo })
        .selectAll("div.geo")
        .data(function(d) {
          var features = [];
          d.geo.features.forEach(function(f) {
            if(f.properties.region_a === d.state) features.push(f)
          })
          if(features.length) {
            d.selected = features[0];
          }
          return features;
        })
      
      geos.enter().append("div").classed("geo", true)
      .on("click", function(g) {
        var d = d3.select(this.parentNode).datum() 
        d.selected = g;
        console.log(d, g);
        
        geos.style("background-color", bgColor)
      })
      function bgColor(g){ 
          var d = d3.select(this.parentNode).datum();
          if(d.selected === g) {return "#efefef"}
          return "white"
      }
      geos.style({
        clear: function(g, i) { 
          if(i === 0) return "left"
          return;
        },
        "background-color": bgColor
      })
      geos.text(function(g) {
        return g.properties.label
      })
    }
  </script>
</body>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js