dashboard/js/lib/ui.js
function Card(front, back) {
  ui.Emitter.call(this);
  this._front = front || $('<p>front</p>');
  this._back = back  || $('<p>back</p>');
  this.template = html;
  this.render();
}
function Card(front, back) {
  ui.Emitter.call(this);
  this._front = front || $('<p>front</p>');
  this._back = back  || $('<p>back</p>');
  this.template = html;
  this.render();
}
function Card ( front , back ) { ui . Emitter . call ( this ) ; this . _front = front || $ ( '<p>front</p>' ) ; this . _back = back || $ ( '<p>back</p>' ) ; this . template = html ; this . render ( ) ; }
Initialize a new `Card` with content
for face `front` and `back`.

Emits "flip" event.

@param {Mixed} front
@param {Mixed} back
@api public
Initialize a new Card with content for face front and back .