brain-games10/dist/games/calc.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 signs = ['+', '-', '*'];

const generateRandomSign = () => signs[(0, _utils.default)(0, signs.length - 1)];

const chooseSign = sign => {
  let fn;

  switch (sign) {
    case '+':
      fn = (a, b) => a + b;

      break;

    case '-':
      fn = (a, b) => a - b;

      break;

    case '*':
      fn = (a, b) => a * b;

      break;

    default:
  }

  return fn;
};

const rule = 'What is the result of the expression?';

const generateQuestion = () => {
  const a = (0, _utils.default)(1, 100);
  const sign = generateRandomSign();
  const b = (0, _utils.default)(1, 100);
  const question = `${a} ${sign} ${b}`;
  const correctAnswer = String(chooseSign(sign)(a, b));
  return {
    question,
    correctAnswer
  };
};

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

exports.default = _default;
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