javascript - alien in my console

space invader

(function(e,t) {
    console.log('%s\nKilroy was here.', t.replace(/\w/g, function(x) {return e[x];}));
}({a:' ',l:'▀',i:'▄',e:'█',n:'\n'}, "aaaliaaailaanaaieleeeleianaeleeeeeeelenaeaellllleaenaaaallallaaan"));

console.log output:

    ▀▄   ▄▀  
   ▄█▀███▀█▄ 
  █▀███████▀█
  █ █▀▀▀▀▀█ █
     ▀▀ ▀▀   
 
 Kilroy was here.