brain-games-dmitry-sorokin/dist/games/progression.js

project-lvl1-s236

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

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

var _ = require('..');

var _2 = _interopRequireDefault(_);

var _random = require('../random');

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

var gameRules = 'What number is missing in this progression?';

// const randomNumber = () => Math.floor(Math.random() * 100);

var generateQuestion = function generateQuestion() {
  var lengthOfProgression = 10;
  var start = (0, _random.randomNumTen)();
  var step = (0, _random.randomNumTen)() + 2;
  var hidden = (0, _random.randomNumTen)();
  var num = Array(lengthOfProgression).fill(null).map(function (e, i) {
    return start + step * i;
  });
  var question = num.map(function (e, i) {
    return i === hidden ? '..' : e;
  }).join(' ');
  var answer = String(num[hidden]);
  return (0, _hexletPairs.cons)(question, answer);
};
var startProgression = function startProgression() {
  return (0, _2.default)(gameRules, generateQuestion);
};

exports.default = startProgression;
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