brain-gameskstchv1/dist/games/progression.js

brain-games project

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _ = _interopRequireDefault(require(".."));

var _utils = _interopRequireDefault(require("../utils"));

var _hexletPairs = require("hexlet-pairs");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const greeting = 'What number is missing in the progression?';
const lengthProgression = 10;

const generateProgression = (start, step, length) => {
  let progression = '';
  let progressionElement;
  const hiddenElementPosition = (0, _utils.default)(1, lengthProgression);
  const hiddenElement = start + (hiddenElementPosition - 1) * step;

  for (let i = 1; i < length + 1; i += 1) {
    if (i === hiddenElementPosition) {
      progressionElement = '..';
    } else {
      progressionElement = start + (i - 1) * step;
    }

    progression += `${progressionElement} `;
  }

  return (0, _hexletPairs.cons)(progression, hiddenElement);
};

const progressionData = () => {
  const startOfProgression = (0, _utils.default)(1, 10);
  const stepOfProgression = (0, _utils.default)(1, 3);
  const data = generateProgression(startOfProgression, stepOfProgression, lengthProgression);
  const question = (0, _hexletPairs.car)(data);
  const correctAnswer = String((0, _hexletPairs.cdr)(data));
  return (0, _hexletPairs.cons)(question, correctAnswer);
};

var _default = () => (0, _.default)(greeting, progressionData);

exports.default = _default;
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