TypeScript Array Object.entries() Method

The Object.entries() is a method in TypeScript, that is very useful for creating an array of key-value pairs from the keys and values of the object passed to it as a parameter.

Syntax:

Object.entries(obj);

Parameter:

• obj: It takes the object as a parameter whose key-value pair you want to store in the array.

Return Value:

It will return an array of arrays where each nested array contains a key and a value pair of objects as values.

Example 1: In this example, we are going to create key-value pairs from the given person object.

Javascript

interface Company {
    name: string;
    workForce: number;
}

const person: Company = {
    name: "GeeksforGeeks",
    workForce: 200,
};

const personEntries = Object.entries(person);
console.log(personEntries);

Output:

[
    ["name", "GeeksforGeeks"], 
    ["workForce", 200]
] 

Example 2: In this example we are going to extract key-value pairs from the given product list.

Javascript

interface Product {
    id: number;
    name: string;
    price: number;
}

const products: Product[] = [
    { id: 1, name: "Apple", price: 1.99 },
    { id: 2, name: "Banana", price: 0.79 },
    { id: 3, name: "Orange", price: 1.25 },
];

const productEntries = Object.entries(products);
console.log(productEntries);

Output:

[
    [ '0', { id: 1, name: 'Apple', price: 1.99 } ],
    [ '1', { id: 2, name: 'Banana', price: 0.79 } ],
    [ '2', { id: 3, name: 'Orange', price: 1.25 } ]
]