/* 💡"JavaScript-with-JC"

👉 Flatten Object implementation */

const person = {

name: "Jayesh",

address: {

state: "M.P",

country: "India",

subAdress: {

city: "Burhanpur",

},

},

skills: {

frontend: ["JavaScript", "React Js", "CSS"],

backend: ["Node Js", "Mongo Db"],

},

};

const flattenObject = (obj) => {

const result = {};

//// looping through obj

for (let key in obj) {

// checking type of key

if (typeof obj[key] === "object") {

// if object call flattenObject again

const temp = flattenObject(obj[key]);

for (let childKey in temp) {

// concatenate key with childKey => key.childKey

result[key + "." + childKey] = temp[childKey];

}

} else {

// else store obj[key] in result directly

result[key] = obj[key];

}

}

return result;

};

const flattenPerson = flattenObject(person);

console.log(flattenPerson);

// output

// {

// name: "Jayesh",

// address.state: "M.P",

// address.country: "India",

// address.subAdress.city: "Burhanpur",

// skills.frontend.0: "JavaScript",

// skills.frontend.1: "React Js",

// skills.frontend.2: "CSS",

// skills.backend.0: "Node Js",

// skills.backend.1: "Mongo Db"

// }