# `Object.fromEntries`

This method is used to convert an array of key-value pairs into an object.

* The `fromEntries` method takes an #key# argument: which is an iterable object such as an array, Map, or object that implements the iterable protocol #key#.
* The `fromEntries` method returns a new object created from the iterable object passed as an argument.

## Creating an Object from an array

let emojis = [ ['love' , '💕'], ['happy', '😊 '] ];
let emojisObj = Object.fromEntries(emojis);
console.log(emojisObj);

codemirror

console

let map = new Map([ ['love' , '💕'], ['happy', '😊 '] ]);
let emoji = Object.fromEntries(map);
console.log(emoji);

## Tip: Shallow clone an Object 

We can use `fromEntries` to clone an object. To do this, you need to convert the object to entries and create the object using `fromEntries`.

let user ={
    name : "Balaji",
    age : 23,
};
let entries = Object.entries(user);
console.log("Entries is", entries);
let clonedObj = Object.fromEntries(entries);

console.log("\nObject cloned");

clonedObj.age = 24;
console.log("\nAfter setting clonedObj.age = 24", clonedObj.age);

console.log("\nAfter setting conedObj.age=24", user.age);

Make sure that only the key-value pair is passed; otherwise, there will be an error. 

### The below code will throw an error
```
// TypeError will be thrown in all the below case 
Object.fromEntries(undefined)
Object.fromEntries(null)
Object.fromEntries(true)
Object.fromEntries(100)
Object.fromEntries("hi")
Object.fromEntries({key: "value"})
Object.fromEntries([1,2,3])
```
---

How to use Object.fromEntries in JavaScript?

Converts iterable key-value pairs (array, Map) to an object. Errors if passed invalid types.

How to use Object.fromEntries in JavaScript?

Object.fromEntries

Creating an Object from an array

Creating an Object from Map

Tip: Shallow clone an Object

The below code will throw an error

`Object.fromEntries`