Scrape Billboard Hot 100 and create an array of objects

scraper.js

/**
 * Install x-ray with: 'npm install x-ray'
 * (Also see: https://github.com/lapwinglabs/x-ray)
 * 
 * Run with: node scraper.js
 * 
 * Result:
 * 
 * [ { rankCurrent: '1',
 *     rankLast: 'Last Week: 1',
 *     title: 'One Dance',
 *     artist: 'Drake Featuring WizKid & Kyla' },
 *   { rankCurrent: '2',
 *     rankLast: 'Last Week: 2',
 *     title: 'Can\'t Stop The Feeling!',
 *     artist: 'Justin Timberlake' },
 *   { rankCurrent: '3',
 *     rankLast: 'Last Week: 3',
 *     title: 'Panda',
 *     artist: 'Desiigner' },
 *   { rankCurrent: '4',
 *     rankLast: 'Last Week: 4',
 *     title: 'Don\'t Let Me Down',
 *     artist: 'The Chainsmokers Featuring Daya' },
 * ....
 */

var Xray = require('x-ray');

var scraper = Xray({
  filters: {
    trim: function (value) {
      return typeof value === 'string' ? value.replace(/\n/g, '').trim() : value
    }
  }
});

scraper('http://www.billboard.com/charts/hot-100', '.chart-row__main-display', 
  [{
    rankCurrent: '.chart-row__current-week',
    rankLast: '.chart-row__last-week',
    title: '.chart-row__song | trim',
    artist: '.chart-row__artist | trim'
  }]
)(console.log);