brain-games10/dist/games/game-progression.js

Hexlet Project #1

"use strict";

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

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

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

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

const rule = 'What number is missing in the progression?';

const generateProgression = (a1, d) => {
  const progression = [];

  for (let i = 0; i < 10; i += 1) {
    progression.push(a1 + d * i);
  }

  return progression;
};

const generateQuestion = () => {
  const a1 = (0, _utils.default)(100);
  const d = (0, _utils.default)(10);
  const progression = generateProgression(a1, d);
  const randomIndex = (0, _utils.default)(progression.length);
  const correctAnswer = String(progression[randomIndex]);
  progression[randomIndex] = '..';
  const question = `${progression.join(' ')}`;
  return {
    question,
    correctAnswer
  };
};

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

exports.default = _default;
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