How to Generate an Array of Months Using Moment.js in ReactJS

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The Problem

Imagine you want to create an array of months starting from the current month and going back a year. For instance, if today’s date is May 4, 2022, you want your month array to look something like this:

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You may have attempted to implement this using the useEffect hook in React but faced some issues. Perhaps your output resulted in an empty array, leaving you puzzled about what went wrong.

Solution Breakdown

Step 1: Setting Up Your Dates

First, you'll want to initiate your start and end dates. Set your dateStart to the current date and dateEnd to one year prior.

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Step 2: Generate the Month Array

The core logic involves looping through the months to build your array. The key mistakes in the original attempt include using diff() incorrectly and adding to dateStart instead of using dateEnd. Here’s the corrected implementation:

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Step 3: Complete Example

Here’s how it all fits together in your useEffect hook:

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Conclusion

If you have any questions or run into issues, feel free to ask in the comments. Happy coding!