How to Sort a Dictionary Alphabetically by Value in JavaScript

Learn how to sort a dictionary in JavaScript by its values alphabetically using simple code snippets and explanations.
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Introduction

If you're working with dictionaries (also known as objects) in JavaScript, you might encounter situations where you need to sort them based on their values. Sorting a dictionary alphabetically by value can be especially useful when working with datasets where order matters. In this post, we will demonstrate how to accomplish this task effectively.

The Problem

Suppose you have the following dictionary:

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Your goal is to sort this dictionary alphabetically by the values so that it appears as follows:

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However, you might initially try this approach:

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And then face the frustrating realization that the sorting isn't working as expected! The issue arises because the sorting method you're using may not be correctly interpreting the values as strings for alphabetical comparison.

The Solution: Step-by-Step Breakdown

Step 1: Convert the Dictionary to an Array of Entries

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Step 2: Sort the Entries Alphabetically

Once we have the array of entries, we can sort them. The sort() function can be used along with the localeCompare() method which compares two strings in a locale-sensitive manner.

Here's how it's done:

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In this case, we're using destructuring to ignore the keys and focus on the values, a and b.

Step 3: Convert Back to a Dictionary

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Complete Code Example

Here’s the complete code that accomplishes this sorting:

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Final Output

When you run the above code, your sorted dictionary will appear correctly:

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Conclusion

By applying the steps and code provided in this post, you’ll be able to sort any dictionary by its values easily. Happy coding!