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luhn-generator

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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

69 lines (51 loc) 1.39 kB
"use strict"; exports.__esModule = true; var _iterator = require("../core-js/symbol/iterator"); var _iterator2 = _interopRequireDefault(_iterator); var _symbol = require("../core-js/symbol"); var _symbol2 = _interopRequireDefault(_symbol); var _promise = require("../core-js/promise"); var _promise2 = _interopRequireDefault(_promise); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } exports.default = function (inner, awaitWrap) { var iter = {}, waiting = false; function pump(key, value) { waiting = true; value = new _promise2.default(function (resolve) { resolve(inner[key](value)); }); return { done: false, value: awaitWrap(value) }; } ; if (typeof _symbol2.default === "function" && _iterator2.default) { iter[_iterator2.default] = function () { return this; }; } iter.next = function (value) { if (waiting) { waiting = false; return value; } return pump("next", value); }; if (typeof inner.throw === "function") { iter.throw = function (value) { if (waiting) { waiting = false; throw value; } return pump("throw", value); }; } if (typeof inner.return === "function") { iter.return = function (value) { return pump("return", value); }; } return iter; };