random emoji for fish shell

random_emoji.fish

function random_emoji
  if count $argv >/dev/null
    set emojis $argv
  else
    set emojis ♨ 🐟 ⚡ 🐳 🗿 🔥 🌻 🎐 🌿 🍷 🌹 🎀 🌺 🌱 🗻 🌼 🎠 🌈 🐝 🌊 🚃 🐧 🌷 🚀 🌙 🎩 🐍 🐞 🌕 🍒 🍎 🍓
  end
  set emoji $emojis[(math (random)%(count $emojis)+1)] 
  echo -n " $emoji "
end