Intended for use as a library to evaluate hands in a Texas Hold 'Em game engine.
It uses the Two Plus Two algorithm and lookup table. The lookup table HandRanks.dat is included in the data folder.
It is capable of evaluating 5, 6 and 7 card hands (hole cards + flop, turn and river).
Hands can be evaluated by comparing the type then the rank to determine the better hand. When comparing hands, the highest value is the winner.
Run npm test to check out the speed test - this can evaluate about 200 million hands per second on a Ryzen 5 2600.
const HandEvaluator = require('./lib/hand-evaluator');
HandEvaluator.evaluateHand(['As', 'Ks', 'Qs', 'Js', 'Ts', '3c', '5h']);
//{ type: 9,
// rank: 10,
// value: 36874,
// name: 'STRAIGHT_FLUSH' }
HandEvaluator.evaluateHand(['As', 'Ac', 'Ad', '5d', '5s']);
//{ type: 7,
// rank: 148,
// value: 28820,
// name: 'FULL_HOUSE' }Forked from chenosaurus' poker evaluator.