// model
function Model () {
  this._state = {}
  return this
}

Model.prototype.get = function (key) {
  return this._state[key]
}

Model.prototype.set = function (key, value) {
  this._state[key] = value
  return this
}

// view
function View (container, html) {
  this.container = container
  this.html = html
  return this
}
View.prototype.template = function (model) {

  var _html = this.html

  Object
    .keys(model)
    .forEach(function (key) {
      _html = _html.replace(new Regexp('({{\s?' + key + '\s?}})', 'g'), model[key])
    })

  return $(_html)
}
View.prototype.render = function (model) {
  this
    .template(model)
    .appendTo(this.container)
}

// controller
var model = new Model()
  .set('foo', 10)
  .set('bar', 20)

// demo
var html = '<div class="{{ foo }}">{{ bar }}</div>'
new View($('#container'), html)
  .render(model)