made with esnextbin
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May 25, 2017 15:32
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esnextbin sketch
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>ESNextbin Sketch</title> | |
| <!-- put additional styles and scripts here --> | |
| </head> | |
| <body> | |
| <!-- put markup and other contents here --> | |
| </body> | |
| </html> |
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| console.clear() | |
| function factorial(n) { | |
| return n === 0 ? 1 : n * factorial(n - 1) | |
| } | |
| const card = (suit, rank) => ({ suit, rank }) | |
| const ranks = [ '2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K', 'A'] | |
| const suits = ['diamonds', 'hearts', 'spades', 'clubs'] | |
| function newDeck() { | |
| const cards = [] | |
| for (const suit of suits) | |
| for (const rank of ranks) | |
| cards.push(card(suit, rank)) | |
| return cards | |
| } | |
| function combos(amount, deck = newDeck()) { | |
| let x = 52 | |
| for (let i = 1; i < amount; ++i) { | |
| x = x * (deck.length - i) | |
| } | |
| const y = factorial(amount) | |
| return x / y | |
| } | |
| function generateHands(size = 2, input = newDeck()){ | |
| const hands = [] | |
| const total = Math.pow(2, input.length) | |
| for (let mask = 1; mask < total; mask++) { | |
| const result = [] | |
| let i = input.length - 1 | |
| while(i--) { | |
| if( (mask & (1 << i)) !== 0){ | |
| result.push(input[i]) | |
| } | |
| } | |
| if( result.length >= size) | |
| hands.push(result) | |
| } | |
| return hands; | |
| } | |
| const deck = newDeck() | |
| console.log(generateHands()) |
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| { | |
| "name": "esnextbin-sketch", | |
| "version": "0.0.0", | |
| "dependencies": { | |
| "babel-runtime": "6.22.0" | |
| } | |
| } |
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| 'use strict'; | |
| var _getIterator2 = require('babel-runtime/core-js/get-iterator'); | |
| var _getIterator3 = _interopRequireDefault(_getIterator2); | |
| function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } | |
| console.clear(); | |
| function factorial(n) { | |
| return n === 0 ? 1 : n * factorial(n - 1); | |
| } | |
| var card = function card(suit, rank) { | |
| return { suit: suit, rank: rank }; | |
| }; | |
| var ranks = ['2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K', 'A']; | |
| var suits = ['diamonds', 'hearts', 'spades', 'clubs']; | |
| function newDeck() { | |
| var cards = []; | |
| var _iteratorNormalCompletion = true; | |
| var _didIteratorError = false; | |
| var _iteratorError = undefined; | |
| try { | |
| for (var _iterator = (0, _getIterator3.default)(suits), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { | |
| var suit = _step.value; | |
| var _iteratorNormalCompletion2 = true; | |
| var _didIteratorError2 = false; | |
| var _iteratorError2 = undefined; | |
| try { | |
| for (var _iterator2 = (0, _getIterator3.default)(ranks), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) { | |
| var rank = _step2.value; | |
| cards.push(card(suit, rank)); | |
| } | |
| } catch (err) { | |
| _didIteratorError2 = true; | |
| _iteratorError2 = err; | |
| } finally { | |
| try { | |
| if (!_iteratorNormalCompletion2 && _iterator2.return) { | |
| _iterator2.return(); | |
| } | |
| } finally { | |
| if (_didIteratorError2) { | |
| throw _iteratorError2; | |
| } | |
| } | |
| } | |
| } | |
| } catch (err) { | |
| _didIteratorError = true; | |
| _iteratorError = err; | |
| } finally { | |
| try { | |
| if (!_iteratorNormalCompletion && _iterator.return) { | |
| _iterator.return(); | |
| } | |
| } finally { | |
| if (_didIteratorError) { | |
| throw _iteratorError; | |
| } | |
| } | |
| } | |
| return cards; | |
| } | |
| function combos(amount) { | |
| var deck = arguments.length <= 1 || arguments[1] === undefined ? newDeck() : arguments[1]; | |
| var x = 52; | |
| for (var i = 1; i < amount; ++i) { | |
| x = x * (deck.length - i); | |
| } | |
| var y = factorial(amount); | |
| return x / y; | |
| } | |
| function generateHands() { | |
| var size = arguments.length <= 0 || arguments[0] === undefined ? 2 : arguments[0]; | |
| var input = arguments.length <= 1 || arguments[1] === undefined ? newDeck() : arguments[1]; | |
| var hands = []; | |
| var total = Math.pow(2, input.length); | |
| for (var mask = 1; mask < total; mask++) { | |
| var result = []; | |
| var i = input.length - 1; | |
| while (i--) { | |
| if ((mask & 1 << i) !== 0) { | |
| result.push(input[i]); | |
| } | |
| } | |
| if (result.length >= size) hands.push(result); | |
| } | |
| return hands; | |
| } | |
| var deck = newDeck(); | |
| console.log(generateHands()); |
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