nodejs-odyssey-quest.js

process.stdin.resume()
process.stdin.setEncoding('utf8')

// console.log('What\'s your name ? ')
// process.stdin.on('data', (text) => {
//   console.log('Hello ' + text)
//   process.exit()
// })

console.log('What\'s your age ? ')
process.stdin.on('data', (text) => {
    const regex = /\d+/;
    if(regex.test(text) && text <= 99) {
        let date = new Date();
        let year = date.getFullYear();
        let result = year - text;
        console.log(`Your birth year is: ${result}.`)
    } else if(text !== regex) {
        console.log('Please, enter only digits!');
    } else if (text > 99) {
        console.log('The value must not be greater than 99')
    } else console.log('Something happened. Try again!')
})