src/games/prime.js
import game from '..';
import makeRandomNumber from '../utils';
const rule = 'Answer "yes" if given number is prime. Otherwise answer "no".';
const isPrime = (question) => {
const smallestPrime = 2;
if (question < smallestPrime) {
return false;
}
for (let i = smallestPrime; i <= Math.floor(Math.sqrt(question)); i += 1) {
if (question % i === 0) {
return false;
}
}
return true;
};
const logic = () => {
const question = makeRandomNumber(1, 99);
const correctAnswer = isPrime(question) ? 'yes' : 'no';
return [question, correctAnswer];
};
export default () => game(logic, rule);