12 Days of Christmas in ES2015 - paste this into your DevTools console!

12-days.js

// adapted from https://tonicdev.com/n3dst4/twelve-days-of-emoji
// full credit to n3dst4. I just rewrote this to be browser developer tools friendly.
const pressies = [
  "🐦🍐🌳",
  "🐢🐦",
  "🇫🇷🐔",
  "📞🐦",
  "💛💍",
  "🐦🍳 ",
  "🐦🏊",
  "👧🐄",
  "💃♫",
  "🎩🏃",
  "👴🎺",
  "😜✌️",
].map((s, i) => new Array(i+1).fill(s).join(" ") + "\n\n");

console.log(Array.from(Array(13).keys()).slice(1).map(dayNum => dayNum + '\n' + pressies.slice(0, dayNum).reverse().join("")).join("\n"));