Simple Javascript async each loop

gistfile1.txt

/*
Prevents browsers from crashing with heavy loops
*/
eachAsync = function(array, iterator, callback) {
  var timeout = 0;
  var counter = 0;
  function process() {
    iterator.apply && iterator.apply(this, [counter, array[counter]]);
    counter += 1;
    if (counter < array.length) {
      setTimeout(process, timeout);
    } else {
      callback.apply && callback.apply(this, []);
    }
  };
  setTimeout(process, timeout);
}