anf-project-lvl1-braingames/dist/games/progression-game.js

Games with numbers

"use strict";

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

var _index = require("../index");

const randomInt = (min, max) => Math.floor(Math.random() * (max - min)) + min;

const helloWord = 'What number is missing in the progression?\n';

const progGenerator = () => {
  const arr = new Array(10);
  arr[0] = (0, _index.randomNum)();
  const progStep = randomInt(2, 9);

  for (let i = 1; i < 10; i += 1) {
    arr[i] = arr[i - 1] + progStep;
  }

  const emptyCell = randomInt(0, 10);
  arr[emptyCell] = '..';
  return `${arr[0]} ${arr[1]} ${arr[2]} ${arr[3]} ${arr[4]} ${arr[5]} ${arr[6]} ${arr[7]} ${arr[8]} ${arr[9]}`;
};

const getRandCorrAns = express => {
  let count = 0;
  const arr = new Array(10);
  arr[0] = '';
  arr[1] = '';
  arr[2] = '';
  arr[3] = '';
  arr[4] = '';
  arr[5] = '';
  arr[6] = '';
  arr[7] = '';
  arr[8] = '';
  arr[9] = '';

  for (let i = 0; i < express.length; i += 1) {
    if (express[i] === ' ') {
      count += 1;
    } else {
      arr[count] += express[i];
    }
  }

  let i = 0;

  while (i < 10) {
    if (arr[i] === '..') {
      if (i === 0) {
        return (Number(arr[i + 1]) - (Number(arr[i + 2]) - Number(arr[i + 1]))).toString();
      }

      if (i === 9) {
        return (Number(arr[i - 1]) + (Number(arr[i - 1]) - Number(arr[i - 2]))).toString();
      }

      return ((Number(arr[i - 1]) + Number(arr[i + 1])) / 2).toString();
    }

    i += 1;
  }

  return NaN;
};

var _default = () => {
  (0, _index.testAnswer)(helloWord, progGenerator, _index.takeAnswer, getRandCorrAns);
};

exports.default = _default;
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