JSFiddle - React, Tailwind, and code Playground

by A B Jones

CSS

body {
  font: 10px sans-serif;
}

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

.bar {
  fill: steelblue;
}

.x.axis path {
  display: none;
}

JavaScript

var data3 = [
{ x: 0, y: 1, yheight: 0 },
{ x: 1, y: 1, yheight: 0 }, 
{ x: 1, y: 1, yheight: 1 }, 
{ x: 2, y: 1, yheight: 0 }, 
{ x: 2, y: 1, yheight: 1 },
{ x: 2, y: 1, yheight: 2 }, 
{ x: 3, y: 1, yheight: 0 }, 
{ x: 4, y: 1, yheight: 0 }, 
{ x: 4, y: 1, yheight: 1 }, 
{ x: 4, y: 1, yheight: 2 }
];

var data = [
{ x: 0, yHeight0: 1, yHeight1: 0, yHeight2: 0 }, 
{ x: 1, yHeight0: 1, yHeight1: 1, yHeight2: 0 },
{ x: 2, yHeight0: 1, yHeight1: 1, yHeight2: 2 }, 
{ x: 3, yHeight0: 1, yHeight1: 0, yHeight2: 0 },  
{ x: 4, yHeight0: 1, yHeight1: 1, yHeight2: 2 }
]

//console.log(newArray)

var margin = {
    top: 20,
    right: 20,
    bottom: 30,
    left: 40
  },
  width = 800 - margin.left - margin.right,
  height = 500 - margin.top - margin.bottom;

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

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

var color = d3.scale.ordinal()
  .range(["#90C3D4", "#E8E8E8", "#DB9A9A", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);

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

var yAxis = d3.svg.axis()
  .scale(y)
  .orient("left")
  .tickFormat(d3.format(".2s"));

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 + ")"); 
  
  //below i purposely pick data[4] as I know thats the longest dataset so it gets all the yHeights
color.domain(d3.keys(data[4]).filter(function(key) { 
  return key !== "x";
}));

data.forEach(function(d) {
  var y0 = 0;
  d.ages = color.domain().map(function(name) {
    return {
      name: name,
      y0: y0,
      y1: y0 += +d[name]
    };
  });
  d.total = d.ages[d.ages.length - 1].y1;
});
 
x.domain(data.map(function(d) {
  return d.x;
}));
y.domain([0, d3.max(data, function(d) {
  return d.total;
})]);

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