Javascript :Private property in function

function createPerson() {

const privateData = {

name: '',

age: 0

};

return {

setName(name) {

privateData.name = name;

},

setAge(age) {

privateData.age = age;

},

getInfo() {

return `Name: ${privateData.name}, Age: ${privateData.age}`;

}

};

};

//or

const person = createPerson();

person.setName('John');

person.setAge(30);

console.log(person.getInfo()); // logs "Name: John, Age: 30"

console.log(person.privateData); // logs undefined

Here privateData is private property is not accesible from outside.

Here approach is to use a factory function to create instances of an

object with private properties.