README.md

## README.md

      
          Raw
        
        
              README.md
            
          
    Built with blockbuilder.org

  
## index.html
<!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; }
    svg { width: 100%; height: 100%; }
.new {
    fill: green;
}

.changed {
    fill: red;
}
  </style>
</head>

<body>
    <div id="container"></div>
  <script>
    // original fiddle here: http://jsfiddle.net/cpw3ee5t/
    // a fork of http://jsfiddle.net/by38rLdv/4/

    var margin = {top: 20, right: 10, bottom: 20, left: 10};
    var width = 960 - margin.left - margin.right;
    var height = 500 - margin.top - margin.bottom;
    var svg = d3.select("body").append("svg")
      .attr("width", width + margin.left + margin.right)
      .attr("height", height + margin.top + margin.bottom)
    .append("g")
      .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

    // Feel free to change or delete any of the code you see!
var svg = d3.select("#container").append("svg")
    .attr("width",500).attr("height",100);

var things = ["a", "b", "c"];

function update() {
    // clear old classes
    svg.selectAll("text").attr("class","");

    // join to the new data
    var sel = svg.selectAll("text").data(things);

    // higlight changed items before update
    sel.classed("changed", function(d) { return d != d3.select(this).text(); });

    // enter
    sel.enter()
        .append("text")
        .attr("class","new")
        .attr("x", function(d,i) { return 20*i; })
        .attr("y", 20)
        .on("click", function(d,i) {
            things[i] = String.fromCharCode(things[i].charCodeAt(0)+1);
            update();
        });

    // update + enter
    sel.text(function(d) { return d; });

    // exit
    sel.exit().remove();
}

// initial setup
update();


    console.log("you are now rocking with d3", d3);
  </script>
</body>