Intl.ListFormat - New JavaScript Features in Node.js v12

Intl_ListFormat.js

const vehicles = ['Motorcycle', 'Bus', 'Car'];
{
  const formatter = new Intl.ListFormat('ja', { style: 'long', type: 'conjunction' });
  console.log(formatter.format(vehicles));
  // expected output: "Motorcycle、Bus、Car"
}
{
  const formatter = new Intl.ListFormat('en', { style: 'long', type: 'conjunction' });
  console.log(formatter.format(vehicles));
  // expected output: "Motorcycle, Bus, and Car"
}