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How to Group 2 Objects in JavaScript

Oct 04, 2024

When working with JavaScript, you may come across a situation where you need to group two objects together. This can be achieved using various methods and techniques. In this article, we will explore how to group 2 objects in JavaScript.

1. Using Object.assign():

One of the simplest ways to group 2 objects in JavaScript is by using the Object.assign() method. This method can be used to merge the properties of two objects into a single object. Here's an example:

const obj1 = { a: 1, b: 2 };

const obj2 = { c: 3, d: 4 };

const groupedObj = Object.assign({}, obj1, obj2);

console.log(groupedObj); // { a: 1, b: 2, c: 3, d: 4 }

2. Using the Spread Operator:

Another way to group 2 objects is by using the spread operator (...). This operator allows you to spread the properties of an object into another object. Here's how you can use it to group 2 objects:

const obj1 = { a: 1, b: 2 };

const obj2 = { c: 3, d: 4 };

const groupedObj = { ...obj1, ...obj2 };

console.log(groupedObj); // { a: 1, b: 2, c: 3, d: 4 }

3. Using Object.assign() and the Spread Operator:

You can also combine Object.assign() and the spread operator to group 2 objects. This allows you to merge the properties of multiple objects into a single object. Here's an example:

const obj1 = { a: 1, b: 2 };

const obj2 = { c: 3, d: 4 };

const obj3 = { e: 5, f: 6 };

const groupedObj = { ...Object.assign({}, obj1, obj2), ...obj3 };

console.log(groupedObj); // { a: 1, b: 2, c: 3, d: 4, e: 5, f: 6 }

4. Using Lodash:

If you prefer using a library, you can also use Lodash to group 2 objects. Lodash provides a merge() function that can be used to merge two or more objects into a single object. Here's how you can achieve object grouping using Lodash:

const obj1 = { a: 1, b: 2 };

const obj2 = { c: 3, d: 4 };

const groupedObj = _.merge({}, obj1, obj2);

console.log(groupedObj); // { a: 1, b: 2, c: 3, d: 4 }

In conclusion, there are several techniques and methods for grouping 2 objects in JavaScript. You can choose the one that best suits your needs and coding style. Whether it's using native methods like Object.assign() and the spread operator, or leveraging libraries like Lodash, grouping 2 objects is an essential skill for any JavaScript developer.

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