How to Sort an Array of Objects by Multiple Criteria in JavaScript

Discover how to effectively sort an array of objects by multiple criteria in JavaScript, including specific conditions based on `receiver_id` and `sender_id`.
---
This video is based on the question https://stackoverflow.com/q/66388393/ asked by the user 'BLU' ( https://stackoverflow.com/u/14710995/ ) and on the answer https://stackoverflow.com/a/66388831/ provided by the user 'danh' ( https://stackoverflow.com/u/294949/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: how to sort array of objects based on id and name

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Sort an Array of Objects by Multiple Criteria in JavaScript

When working with arrays of objects in JavaScript, you might often find yourself needing to sort them based on multiple properties. This task can become complex, especially if you have specific conditions to meet, such as sorting by an id and name while also prioritizing certain elements based on their values.

This guide will guide you through the process of sorting an array of objects using a practical example. Let’s dive into the problem and explore the solution step by step.

The Problem

Consider you have the following JavaScript array of objects that you want to sort:

[[See Video to Reveal this Text or Code Snippet]]

You need to sort this array based on two primary criteria:

Objects with receiver_id or sender_id matching a specific role_id should appear first.

Within those categorized elements, all objects should be sorted alphabetically by the name property.

In this example, assume the role_id is 3. Your sorted array should look like this:

[[See Video to Reveal this Text or Code Snippet]]

The Solution

To achieve the desired sorting, we can define a custom sorting function that incorporates our criteria. Here's how you can do it:

Step 1: Define Your Role ID and Data

First, establish the role_id you will use for comparison and set up your initial data array:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create the Sorting Function

Next, create a function to determine the sort order. This function checks whether an object meets the criteria to be prioritized based on the role_id, and sorts accordingly:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Sort the Data

Finally, apply the sort function to your data array:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Sorting Logic

VIP Function: A function vip determines if an object is a "VIP" by checking if its receiver_id or sender_id matches the role_id.

Comparison Logic: The sorting function compares two objects; if both are VIPs or both are not VIPs, it sorts them alphabetically by name using localeCompare.

Ordering: The VIP objects are prioritized to move to the top of the array.

Conclusion

Sorting an array of objects based on multiple criteria in JavaScript is straightforward with the right approach. By using a custom sorting function, you can efficiently categorize and order your data as needed. The method highlighted here can be repurposed for various sorting tasks beyond this example, making it a valuable skill in your programming toolkit.

Now you can implement this solution in your projects and make data management easier! Happy coding!

Видео How to Sort an Array of Objects by Multiple Criteria in JavaScript канала vlogize