Randomize string on hover

gistfile1.txt

var random_interval = 0;
var textArray = ['home','office','school','hotel','gym','daycare', "doctor's office"];

$(".random").hover(
  function () {
    random_interval = setInterval(function(){
      var randomIndex = Math.floor(Math.random() * textArray.length);
      var randomElement = textArray[randomIndex];
      $('.random').text(randomElement);
    }, 300);
  },
  function () {
    clearInterval(random_interval);
  }
);