Interactive command-line apps in Node.js—a quick taste

prompt.js

function prompt() {
    return new Promise((resolve, reject) => {
        var stdin = process.stdin,
            stdout = process.stdout;
        stdin.resume();
        stdout.write("> ");
        stdin.once('data', function(data) {
            resolve(data.toString().trim());
            stdin.pause();
        });
    });
}
// Promisified from https://stackoverflow.com/a/32276364/500207

console.log("What say you???");
prompt().then(data => {
    console.log(`Really? ‘${data}’?`);
    console.log("Care to try again?");
    prompt().then(data => console.log(`I give up… ‘${data.replace(/\s/g, '')}’ indeed!`));
});