numbers.js

'use strict';
//command line app 3 digit number try to guess
//perfect good bad
//-d number of digits prompt user for answer

const program = require('commander');
const promptly = require('promptly');

program
    .version('0.0.1')
    .option('-d, --digits <number>', 'Number of digits')
    .parse(process.argv);


function generateNumber(digits) {
    const arr = [];
    for (let i = 0; i < digits; i++) {
        arr.push(Math.ceil(Math.random() * Math.floor(9)));
    }
    return arr;
}

async function main() {
    if (program.digits) {

        const newAnswer = generateNumber(program.digits);
        const loop = true;
        while (loop) {
            const guess = await promptly.prompt('Enter your guess');
            const answers = checkAnswer(guess, newAnswer);
            console.log('answers', answers);
            let perfect = 0;
            for (let i = 0; i < newAnswer.length; i++) {
                if ('perfect' == answers[i]) {
                    perfect++;
                }
            }
            if (perfect == answers.length) {
                console.log('You got it');
                break;
            }
        }
    } else {
        console.log('Check input to program: needs -d with number');
    }
}

function checkAnswer(guess, answer) {
    const arr = [];
    for (let i = 0; i < guess.length; i++) {
        if (guess[i] == answer[i]) {
            arr.push('perfect');
        } else if (checkIncludes(answer, guess[i])) {
            arr.push('good');
        } else {
            arr.push('bad');
        }
    }
    return arr;
}

function checkIncludes(answer, guess) {
    for (let i = 0; i < answer.length; i++) {
        if (answer[i] == guess) {
            return true;
        }
    }
    return false;
}

main();