http://www.freecodecamp.com/minsooshin 's solution for Bonfire: Convert HTML Entities

bonfire-convert-html-entities.js

// Bonfire: Convert HTML Entities
// Author: @minsooshin
// Challenge: http://www.freecodecamp.com/challenges/bonfire-convert-html-entities
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function convert(str) {
  // :)
  return str.replace(/&/g, '&')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;')
            .replace(/'/g, '&apos;');
}

convert("Dolce & Gabbana");