Convert array-of-objects to CSV

custom.js

// array-of-objects
const dataset = [
  {
    id: 1,
    name: 'Foo',
    timestamp: new Date()
  },
  {
    id: 2,
    name: 'Bar',
    timestamp: new Date()
  },
  {
    id: 3,
    name: 'Baz',
    timestamp: new Date()
  }
];

const fields = Object.keys(dataset);
const replacer = function (key, value) { return value === null ? '' : value; };
let csv = dataset.map((row) => fields.map((fieldName) => JSON.stringify(row[fieldName], replacer)).join(','));
csv.unshift(fields.join(',')); // add header column
csv = csv.join('\r\n');

// Dependency on D3.js or use alternative CSV parser.
console.log(d3.csvParse(csv))