underscore.js decorator method

utils-decorate.js

/*!
 * utils.js
 * 
 * Copyright (c) 2014
 */

define([
  'underscore',
],function (_) {


// ----------------------------------------------------------------------------
// Mixin
// ----------------------------------------------------------------------------

_.mixin({

  //
  // Wrapper around _.wrap to allow a chain of methods
  // to be applied before a fn. Acts similiar to python
  // decorators. Great for use on route methods (auth,
  // argument checking, etc...)
  //
  decorate: function() {
    // Start at first decorator and work backwards
    var i = arguments.length,
        fn;

    while(i-- > 1) {
      fn = this.wrap(fn ? fn : arguments[i], arguments[i - 1]);
    }

    return fn;
  }

});


// ----------------------------------------------------------------------------
// Expose
// ----------------------------------------------------------------------------

return _;


});