Dot Plots in JavaScript

How to make D3.js-based dot plots in JavaScript. Example of a styled, categorical dot plot.

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Categorical Dot Plot

var country = ['Switzerland (2011)', 'Chile (2013)', 'Japan (2014)', 'United States (2012)', 'Slovenia (2014)', 'Canada (2011)', 'Poland (2010)', 'Estonia (2015)', 'Luxembourg (2013)', 'Portugal (2011)'];

var votingPop = [40, 45.7, 52, 53.6, 54.1, 54.2, 54.5, 54.7, 55.1, 56.6];

var regVoters = [49.1, 42, 52.7, 84.3, 51.7, 61.1, 55.3, 64.2, 91.1, 58.9];

var trace1 = {
  type: 'scatter',
  x: votingPop,
  y: country,
  mode: 'markers',
  name: 'Percent of estimated voting age population',
  marker: {
    color: 'rgba(156, 165, 196, 0.95)',
    line: {
      color: 'rgba(156, 165, 196, 1.0)',
      width: 1,
    },
    symbol: 'circle',
    size: 16
  }
};

var trace2 = {
  x: regVoters,
  y: country,
  mode: 'markers',
  name: 'Percent of estimated registered voters',
  marker: {
    color: 'rgba(204, 204, 204, 0.95)',
    line: {
      color: 'rgba(217, 217, 217, 1.0)',
      width: 1,
    },
    symbol: 'circle',
    size: 16
  }
};

var data = [trace1, trace2];

var layout = {
  title: {
      text: 'Votes cast for ten lowest voting age population in OECD countries',
      font: {
          color: 'rgb(204, 204, 204)'
      }
  },
  xaxis: {
    showgrid: false,
    showline: true,
    linecolor: 'rgb(102, 102, 102)',
    tickfont: {
      font: {
        color: 'rgb(102, 102, 102)'
      }
    },
    tickmode: linear,
    dtick: 10,
    ticks: 'outside',
    tickcolor: 'rgb(102, 102, 102)'
  },
  margin: {
    l: 140,
    r: 40,
    b: 50,
    t: 80
  },
  legend: {
    font: {
      size: 10,
    },
    yanchor: 'middle',
    xanchor: 'right'
  },
  width: 600,
  height: 600,
  paper_bgcolor: 'rgb(254, 247, 234)',
  plot_bgcolor: 'rgb(254, 247, 234)',
  hovermode: 'closest'
};

Plotly.newPlot('myDiv', data, layout);