var Account = function () {};
Object.defineProperties(Account.prototype, {
  deposit: {
    value: function () {
      /* ... */
    },
    configurable: true,
    enumerable: false,
    writable: true
  },
  withdraw: {
    value: function () {
      /* ... */
    },
    configurable: true,
    enumerable: false,
    writable: true
  },
  balance: {
    get: function () {
      /* ... */
    },
    configurable: true,
    enumerable: false
  }
});

var d = require("d");

var Account = function () {};
Object.defineProperties(Account.prototype, {
  deposit: d(function () {
    /* ... */
  }),
  withdraw: d(function () {
    /* ... */
  }),
  balance: d.gs(function () {
    /* ... */
  })
});

{ configurable: true, enumerable: false, writable: true }

d("c", value); // { configurable: true, enumerable: false, writable: false }
d("ce", value); // { configurable: true, enumerable: true, writable: false }
d("e", value); // { configurable: false, enumerable: true, writable: false }

// Same way for get/set:
d.gs("e", value); // { configurable: false, enumerable: true }

var d = require('d');
var autoBind = require('d/auto-bind');

var Foo = function () { this._count = 0; };
Object.defineProperties(Foo.prototype, autoBind({
  increment: d(function () { ++this._count; });
}));

var foo = new Foo();

// Increment foo counter on each domEl click
domEl.addEventListener('click', foo.increment, false);

var d = require("d");
var lazy = require("d/lazy");

var Foo = function () {};
Object.defineProperties(Foo.prototype, lazy({ items: d(function () { return []; }) }));

var foo = new Foo();
foo.items.push(1, 2); // foo.items array created and defined directly on foo