rem: return card && card.faceDown ? [card] : []; 
add: return card && !card.faceUp ? [card] : []; 
context:   getCardsToReveal: function(pile) {    const card = pile ? pile.lastChild : null;    return card && card.faceDown ? [card] : [];  },
meta: 3385	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3385/3db2dcdf553c1408855b1a2f5baf45627592732e/cardgame.js/clean/cardgame.js