obstacleWarnings.js

function warningMaker( obstacle , zones ){
  var count = 0;
  return function ( number, location ) {
    count++;
    zones.push(location);
    alert("Beware! There have been " +
          obstacle +
          " sightings in the Cove today!\n" +
          number +
          " " +
          obstacle +
          "(s) spotted at the " +
          location +
          "!\n" +
          "This is Alert #" +
          count +
          " today for " +
          obstacle +
          " danger.\n" +
          "Current danger zones are:\n" +
          function () {
            for (var i = 0; i < zones.length; i++) {
              return zones[i] + "\n";
            }
          }
         );
  };
}