hexlet-project-lvl1-german/dist/games/progression.js

Project1 from hexlet. Brain Games.

'use strict';

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

var _util = require('../util');

var _util2 = _interopRequireDefault(_util);

var _ = require('..');

var _2 = _interopRequireDefault(_);

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

var progressionLenght = 10;
var progressionStartsMin = 50;
var progressionStartsMax = 150;
var progressionStepMin = -10;
var progressionStepMax = 10;
var description = 'What number is missing in this progression?';

var getProgression = function getProgression() {
  var start = (0, _util2.default)(progressionStartsMin, progressionStartsMax);
  var step = (0, _util2.default)(progressionStepMin, progressionStepMax);
  var current = start;
  var progression = [];
  for (var i = 0; i < progressionLenght; i += 1) {
    progression.push(current);
    current += step;
  }
  return progression;
};

var getQuestionString = function getQuestionString(arr, num) {
  var newArr = arr.slice();
  newArr[num] = '..';
  return newArr.reduce(function (el, acc) {
    return el + ' ' + acc;
  }, '');
};

var generateAnswerAndQuestion = function generateAnswerAndQuestion() {
  var arr = getProgression();
  var missingNumber = (0, _util2.default)(0, progressionLenght);
  var question = getQuestionString(arr, missingNumber);
  var answer = '' + arr[missingNumber];
  return { question: question, answer: answer };
};

exports.default = function () {
  return (0, _2.default)(description, generateAnswerAndQuestion);
};
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