A nice way to gain some control over Backbone.View#events callbacks

example.js

// Use invoker to generate the invoker directly
// and be able to manipulate it. The key is that
// the invoker allways invokes on "this".

var invoker = function(method) {
  var args = [].slice.call(arguments, 1);
  return function() {
    var newargs = [].slice.call(arguments);
    return this[method].apply(this, args.concat(newargs));
  };
};

// Surprisingly useful little combinator

var k = function(v) {
  return function() { return v; };
};

// Headers

var EditableHeader = Base.ItemView.extend({
  template: JST["components/bookingspopup/editable-header"],
  events: {
    // now you can manipulate your callback functions easely
    "keyup .item-room input": _.debounce(invoker("fetchRoomInfo"), 1000),
    // this is just to cancel unwanted default behavirous (text selection)
    "mousedown .ctrl-add, .ctrl-subs": k(false),
    // and configure invocations without duplication
    "click .ctrl-add": invoker("alterPax", 1),
    "click .ctrl-subs": invoker("alterPax", -1),
  },
  alterPax: function(delta, e) {
    e.preventDefault();
    var currentPax = this.model.get("pax");
    this.model.set({pax: currentPax + delta}, {validate: true});
    this.render();
    return false;
  },
  fetchRoomInfo: function() {
    console.log("FETCH ROOM INFO...");
  }
});

Is very obvious now that I think about it, but I see this direct invocator generation as a really useful way to manipulate the event handlers.