How to Sort an Array of Objects by Properties in Javascript

Learn how to effectively sort an array of objects in Javascript using a function that allows for sorting by multiple properties.
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Sorting an Array of Objects in JavaScript

Sorting data is an essential task in programming, especially when dealing with arrays of objects. In this guide, we'll tackle a common problem: how to sort an array of objects by their properties in JavaScript. We will take a look at a specific example involving movies and their genres and show you a step-by-step solution to achieve it.

The Problem

Suppose you have an array of movie objects that look like this:

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Solution Overview

To accomplish this, we will create a function that takes the movie objects as input and sorts them according to the specified criteria. Below are the steps to implement this solution.

Step 1: Sorting by Multiple Properties

Here’s how to combine the sorting criteria:

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Step 2: Implementing the Sorting Function

Next, we’ll create the sorting function that utilizes this combined sorting criteria. Here's how you can structure your function:

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Full Code Example

Here's how the entire sorting process would look in a complete example:

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

This will sort the movies array primarily by the title and secondarily by the genre name.

Step 3: Creating New Arrays Based on Different Sorting

If you want to sort the movies and then create two separate arrays for each sorted column, you can create a more generic method. This method can take a function to specify which property to sort by. Here's an example:

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

Conclusion

In summary, sorting an array of objects in JavaScript can be effectively done with a sorting function that leverages the localeCompare method for string comparison. By following the outlined steps, you can easily sort your arrays by multiple properties and even create flexible sorting functions for generic use.

Feel free to try this approach in your projects, and enjoy the enhanced organization of your data!