hancorg_hexlet/dist/games/progression.js

My first project on Hexlet

"use strict";

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

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

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

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

const length = 10;
const maxFirstNumber = 100;
const maxDifference = 10;
const rule = 'What number is missing in the progression?';

const progression = () => {
  const firstNumber = (0, _utils.default)(1, maxFirstNumber);
  const difference = (0, _utils.default)(1, maxDifference);
  const hiddenNumberPosition = (0, _utils.default)(1, length);
  const trueAnswer = String(firstNumber + difference * hiddenNumberPosition);
  let question = '';

  for (let i = 0; i < length; i += 1) {
    if (i === hiddenNumberPosition) {
      question = `${question} ..`;
    } else {
      question = `${question} ${firstNumber + difference * i}`;
    }
  }

  return [question.substr(1), trueAnswer];
};

var _default = () => (0, _.default)(rule, progression);

exports.default = _default;