simple palindrome function in JS

abba.js

var palindrome = function(center){
  var first = center.slice(0,1);
  var last  = center.slice(-1);
  var mid   = center.slice(1,-1);

  if(mid == "") { print("true"); return;}

  if(first == last) { palindrome(mid); } 
  else { print("false"); }

}
palindrome("abba");