Grabbing the commit stats by week for the past year for the rails/rails repo

stat_collector.js

$.getJSON("https://api.github.com/repos/rails/rails/stats/commit_activity", function(data) {
  var week_count = 1;
  var commits_by_week = data.map(function(week) {
      var total = 0;
      $.each(week['days'], function(k, v) { total += v });
      return total;
  });
  $.each(commits_by_week, function (k, v) {
      console.log("Week " + week_count + ": " + v + " commits");
      week_count++;
    }
  );
});