Prime Numbers

// sudo apt install nodejs
// nodejs *thisfile*
'Is prime?!')
console.log('>> Fanstastic game for whole family...')
console.log(">> Type 'y'||'Y'||'Yes'||'yes' if number is prime.")


const outNumber = () => {
    number = getRandomNumber()
    process.stdout.write(`#${number}? => `)
}

outNumber()

let score = 0
let total = 1

process.stdin.on('data', (answer)=>{
      if(answer=='y'||answer=='yes'||answer=='Y'||answer=='Yes') answer = true
      else answer = false
      number = primes.includes(number)
      if(answer&&number||!answer&&!number){
        score++
        console.log(`Correct! ${score}/${total} guesses right.`)
      } else {
        console.log(`Incorrect! ${score}/${total} guesses right.`)
      }
      console.log('')
      outNumber()
      total++
})