

// maps query_str -> [card ids]
var cardQueryCache = nullish(cardQueryCache, {});

// maps key.sentence -> card id
var cardIdCache = nullish(cardIdCache, {});

/// 











// GLOBALS: word-indicators


//var sameReadingCardCache = nullish(sameReadingCardCache, {});
var similarWordsCardCache = nullish(similarWordsCardCache, {});

/// 







// GLOBALS: check-duplicate-key



// contains all unique keys
var uniqueKeysCache = nullish(uniqueKeysCache, []);

/// 






(function () { // restricts ALL java