Use deferreds in a loop, but keep a reference to something that only exists in each loop iteration

deferred_thing.js.coffee

saveQueue: =>
    for draft_item in @items.models
      attrs = _.clone draft_item.attributes
      delete attrs.id
      item = new StyliticsBackbone.Models.Item(attrs)
      notifyFunction = @_afterSaveFunc(draft_item)
      item.save().success(notifyFunction).error(@_notifyError)

  _afterSaveFunc: (draft_item) =>
    =>
      toastr.info('Saved!')
      draft_item.destroy()

  _notifyError: -> toaster.error('Something went wrong!')