JSFiddle - React, Tailwind, and code Playground

by HattrickNZ

HTML

<script src="https://d3js.org/d3.v3.min.js"></script>

CSS

.bar {
  fill: steelblue;
}

.bar:hover {
  fill: brown;
}

.axis {
  font: 10px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.x.axis path {
  display: none;
}

JavaScript

var margin = {
    top: 20,
    right: 20,
    bottom: 30,
    left: 40
  },
  width = 960 - margin.left - margin.right,
  height = 500 - margin.top - margin.bottom;

var x = d3.scale.ordinal()
  .rangeRoundBands([0, width], .1);

var y = d3.scale.linear()
  .range([height, 0]);

var xAxis = d3.svg.axis()
  .scale(x)
  .orient("bottom");

var yAxis = d3.svg.axis()
  .scale(y)
  .orient("left")
  .ticks(10, "%");

arr = ["https://dl.dropboxusercontent.com/u/49714666/data.tsv", "https://dl.dropboxusercontent.com/u/49714666/data2.tsv"]

var ii=0;

for (this_file in arr) {

  d3.tsv(arr[this_file], type, function(error, data) {
    if (error) throw error;

    console.log("arr[this_file]", arr[this_file]);
    console.log("arr["+ii+"]", arr[ii]);

    x.domain(data.map(function(d) {
      return d.letter;
    }));
    y.domain([0, d3.max(data, function(d) {
      return d.frequency;
    })]);

    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 + ")");

    svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

    svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
      .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Frequency");

    //add a graph title
    svg.append("text")
      .attr("x", (width / 2))
      .attr("y", 0 - (margin.top / 2))
      .attr("text-anchor", "middle")
      .style("font-size", "12px")
      //.style("text-decoration", "underline")  
      .text(arr[ii] + " - 1");

    svg.selectAll(".bar")
      .data(data)
      .enter().append("rect")
      .attr("class", "bar")
      .attr("x", function(d) {
        return x(d.letter);
      })
      .attr("width",...