$ npm install system-font-families

import SystemFonts from 'system-font-families';

const systemFonts = new SystemFonts();

// asynchronous
systemFonts.getFonts().then(
  (res) => {
    // res is an array of font family strings
    // do something with the response
  },
  (err) => // handle the error
);

// synchronous
const fontList = systemFonts.getFontsSync();

var SystemFonts = require('system-font-families').default;

var systemFonts = new SystemFonts();

// asynchronous
systemFonts.getFonts().then(
  function(res) {
    // do something with the response
  },
  function(err) {
    // handle the error
  }
);

// synchronous
var fontList = systemFonts.getFontsSync();

$ npm test

$ npm run build

$ npm run watch