Mathematics Utils

mathematics-utils.js

/**
 * Object list language
 */
const LANGUAGE = {
  errors: 'errors',
  hits: 'hits',
  next: 'next',
  ops: '🤦 Ops, try again!',
  totalErrors: 'total erros',
  totalHits: 'total hits',
  yeah: '👏 Yeah, congratulations!',
  initGame: '🎮 Mathematics',
  startGame: '🏁 Start game',
  finishGame: '🎯 Game Over',
  reset: 'reset',
  startGameAgain: '🏁 Start game again',
  time: '🕑'
};

/**
 * Return result calculate
 * @param {number} n1
 * @param {number} n2
 * @param {string} operator
 */
const CALCULATE = (n1, n2, operator) => {
  let result = 0;

  switch(operator) {
    case '+': result = n1 + n2; break;
    case '-': result = n1 - n2; break;
    case 'x': result = n1 * n2; break;
    case '÷': result = n1 / n2; break;
    default: result = null; break;
  }

  return result.toFixed(0);
};

/**
 * Return the calculate timeout amout
 * @param {number} time
 */
const getCalcTimeoutAmout = (time) => {
  return 100 / time;
}

/**
 * Return random number
 * @param {number} min
 * @param {number} max
 */
const getRandomNumber = (min, max) => {
  return Math.floor(Math.random() * (max - min + 1)) + min;
}

export {LANGUAGE, CALCULATE, getCalcTimeoutAmout, getRandomNumber};