d3js | sankey chart replicating a chord chart

sankey chart to replicate a chord chart

click on either the left or right stacked bars to select/highlight paths—double click to reset

notes:

this chart takes data as per sampleData.js:

const sampleData = [
  {
    label: 'Region-a',
    values: [
      {label: 'Ash', value: 4},
      {label: 'Birch', value: 3},
      {label: 'Maple', value: 1}
    ]
  },
  ...

• it converts it to required format in nodesAndLinks.js for d3-sankey
• it creates the required DOM elements in createDOM.js, to allow control/ease over internal selections
• data is displayed in a html elements via listInfo.js and updateTitle.js functions