Free code camp part 4, rounding out javascript

example.js

const readline = require('readline');

const mike = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

// var person = function(personName,personAge){
// 	let name = personName;
// 	let age = personAge;
// 	let privatewhatever = 'oi';
// 	let obj = {
// 		name:name,
// 		age:age,
// 		checkAge:function(age){
// 			if(age){
// 				//do something
// 			}
// 		}
// 	}

// 	return obj;
// }

mike.question("What's you're name? ", function(answer) {
  // TODO: Log the answer in a database
  var personName=checkStringAnswer(answer);

  mike.question('How old are you?', function(answer){
	var age =checkIntAnswer(answer);
	makePerson(personName,age);
  })
});



function checkIntAnswer(answer){
	var age=parseInt(answer)
	if(!isNaN(age)){
	if(typeof age == "number"){
		if(age >65){
			console.log('You qualify for medicare...maybe');
			
		}
		else{
			console.log('Sorry bro, you gotta private insurance...$$$');
		}
	}	return age;
	}
	else{
		console.log("That wasn't a number!!!!");
		mike.close();
	}
}


function checkStringAnswer(answer){
	var name = answer;
	if(typeof answer == "string"){
		answer = answer.toUpperCase();
		if(answer == "DANIEL"){
			console.log('Well, i thought you were cool but...');
		}
		else{
			console.log("OIIII "+answer+" ?");
		}
		return name;

	}
}

function makePerson(name,age){
	if(name && age){
		let customer = {
			name:name,
			age:age
		};
		console.log("Here is what we've gathered, \n Your name is "+person.name+' and you are '+person.age+' years old, sorry.');
	}
	else{
		console.log('never mind');
		mike.close();
	}
};