get_total.coffee

get_total = (trend, duration) ->
  total = 0
  for keyword in trend.search_terms
    url = "http://otter.topsy.com/search.json?q=#{keyword}&window=#{duration}"
    $.when( $.getJSON(url) ).then((data) ->
      total += data.response.total
    )
  console.log total
  total

get_total.js

get_total = function(trend, duration) {
    var keyword, total, url, _i, _len, _ref;
    total = 0;
    _ref = trend.search_terms;
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      keyword = _ref[_i];
      url = "http://otter.topsy.com/search.json?q=" + keyword + "&window=" + duration;
      $.when($.getJSON(url)).then(function(data) {
        return total += data.response.total;
      });
    }
    console.log(total);
    return total;
  };