src/games/prime.js
import runGame, { getSimpleGameData } from '..';
import getRandom from '../utils';
const ruleOfGame = 'Answer "yes" if given number is prime. Otherwise answer "no".';
export const isPrime = (num) => {
if (num < 2) {
return false;
}
for (let i = 2; i <= num / 2; i += 1) { // to cut caclucations up
if (num % i === 0) {
return false;
}
}
return true;
};
/* isPrige functional programming
const isPrime = (num) => {
if (num < 2) {
return false;
}
const iter = (acc) => {
if (acc > num / 2) {
return true;
}
if (num % acc === 0) {
return false;
}
return iter(acc + 1);
};
return iter(2);
};
*/
const generateGameData = () => getSimpleGameData(isPrime, getRandom(0, 100));
export default () => runGame(ruleOfGame, generateGameData);