simple D3 line chart

copied from: https://leanpub.com/D3-Tips-and-Tricks/read#leanpub-auto-starting-with-a-basic-graph

by Vasilii Chugunov

HTML

менеджер | все<br>
тариф | баланс | статус<br>
начало и окончание<br>

CSS

body {
  font: 12px Arial;
}

path {
  stroke: steelblue;
  stroke-width: 2;
  fill: none;
}

.axis path,
.axis line {
  fill: none;
  stroke: grey;
  stroke-width: 1;
  shape-rendering: crispEdges;
}

JavaScript

// Get the data
var data = [{
  date: "1-Mar-19",
  count: "5"
}, {
  date: "2-Mar-19",
  count: "7"
}, {
  date: "3-Mar-19",
  count: "2"
}, {
  date: "4-Mar-19",
  count: "1"
}, {
  date: "5-Mar-19",
  count: "9"
}];

showData(data);





function showData(data) {
  var margin = {
    top: 30,
    right: 20,
    bottom: 30,
    left: 50
  };
  var width = 600 - margin.left - margin.right;
  var height = 270 - margin.top - margin.bottom;

  var parseDate = d3.time.format("%d-%b-%y").parse;

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

  var xAxis = d3.svg.axis().scale(x)
    .orient("bottom").ticks(5);

  var yAxis = d3.svg.axis().scale(y)
    .orient("left").ticks(5);

  var valueline = d3.svg.line()
    .x(function(d) {
      return x(d.date);
    })
    .y(function(d) {
      return y(d.count);
    });

  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 + ")");

  data.forEach(function(d) {
    d.date = parseDate(d.date);
    d.count = +d.count;
  });

  // Scale the range of the data
  x.domain(d3.extent(data, function(d) {
    return d.date;
  }));
  y.domain([0, d3.max(data, function(d) {
    return d.count;
  })]);

  svg.append("path") // Add the valueline path.
    .attr("d", valueline(data));

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

  svg.append("g") // Add the Y Axis
    .attr("class", "y axis")
    .call(yAxis);
}