NodeJS Input Text and Password from Terminal

App.md

NodeJS Password Input

Implemented using MutableStdOut Writable

form.js

//#!/usr/bin/env node

const readline = require('readline');
var Writable = require('stream').Writable;
var mutableStdout = new Writable({
    write: function(chunk, encoding, callback) {
        if (!this.muted)
            process.stdout.write(chunk, encoding);
        callback();
    }
});
mutableStdout.muted = false; // Default: Make the output stream visible

var rl = readline.createInterface({
    input: process.stdin,
    output: mutableStdout,
    terminal: true
});

rl.question("Enter username: ", (uname)=>{
    rl.question("Enter password: ", (pass)=>{
        mutableStdout.muted = false; // Make the output stream visible again for further inputs
        rl.clearLine(mutableStdout, 0);
        //console.log(); // An alternate for rl.clearLine(mutableStdout, 0);
        rl.question("Enter age: ", (age)=>{
            rl.question("Gender: ", (gender)=>{
                logData(uname, pass, age, gender);
                rl.close();
            });
        });
    });
    mutableStdout.muted = true; // Hide the output stream while entering password
});

var logData = function() {
    for (var i = 0; i < arguments.length; i++) {
        console.log(arguments[i]);
    }
};