const student = {

name : "john Doe",

age : 22 ,

courses : [ "maths",

"physics",

"computer sience"],

address :{

city : "new york",

zip :"10001"}

}

//1.

function displayName(person){

return person.name

}

console.log(displayName(student));

function displaySecondName(person){

return person.courses[1]

}

console.log(displaySecondName(student));

function displayZipCode(person){

return `Zip code: ${person.address["zip"]}`

}

console.log(displayZipCode(student))

//2.

function updateAge(newAge){

student.age = newAge;

return student.age;

}

console.log(updateAge(23));

module.exports = {displayName,displaySecondName,displayZipCode,updateAge,addNewGPA_value,getDetails}

// Add a new property GPA with a value of 3.8.

function addNewGPA_value(student , value){

student["GPA"] = value ;

return student["GPA"]

}

console.log(addNewGPA_value(student , 3.8));

function getDetails(student){

return `${displayName(student)} is ${student["age"]} years old and has a GPA of ${student.GPA}`

}

console.log(getDetails(student))