dispatcher.js

(function() {

function Dispatcher() {
  this.routes = [];
}

Dispatcher.prototype.route = function route(path, action) {
  this.routes.push({ path: path, action: action });
  return this;
};

Dispatcher.prototype.dispatch = function dispache(opts) {
  opts = opts || {};
  var targetPath = opts.path || location.pathname;
  var actions = opts.actions;

  this.routes.forEach(function(route) {
    var path = route.path;
    var action = route.action;
    var match = targetPath.match('^' + path + '$');

    if (!match) return;

    if (typeof action === 'function') {
      action(match);
    }
    else if (typeof actions[action] === 'function') {
      actions[action].apply(this, match);
    }
    else {
      throw new Error('action is not defined');
    }
  });
};

window.Dispatcher = Dispatcher;

})();