Check for value in string array that has highest count, or collect what the highest ties with

gistfile1.txt

var answers = [
  "A",
  "B",
  "C",
  "C"
];

answers.sort();
var types = {};
for(var i = 0; i < answers.length; i++) {
  types[answers[i]] = (types[answers[i]] || 0) 1;
}

var top = 0;
var winner = null;
for(var key in types) {
  if(types.hasOwnProperty(key)) {
    var count = types[key];
    if(count > top) {
      top = count;
      winner = key;
    }
  }
}
var tie = [];
for(var key in types) {
  if(types.hasOwnProperty(key)) {
    if(key !== winner && types[key] === top) {
      tie.push(key);
    }
  }
}