frontend-21-22-learn-programming-with-javascript/while-loop/solution.js

let input = require('readline-sync');

let fuelLevel = 0, numAstronauts = 0, altitude = 0;

while(true) {
    fuelLevel = input.question('Enter the starting fuel level: ');
    if (fuelLevel > 5_000 && fuelLevel < 30_000 && !isNaN(fuelLevel)) {
        break;
    }
}


console.log(fuelLevel);

while(true) {
    numAstronauts = input.question('Enter the number of astronauts: ');
    numAstronauts = Number(numAstronauts)
    if (numAstronauts  < 1) {
        continue;
    }
    if (numAstronauts  > 7) {
        continue;
    }
    if (isNaN(numAstronauts)) {
        continue;
    }
    if (!Number.isInteger(numAstronauts)) {
        continue;
    }
    break;
}

while (fuelLevel -  100*numAstronauts >=0) {
    altitude+=50;
    fuelLevel -= 100*numAstronauts;
}

console.log(`fuellevel: ${fuelLevel}`);
console.log(`altitude: ${altitude}`);




console.log(numAstronauts);