Dynamically Generating Page Numbers for Pagination in JavaScript

Learn how to dynamically generate page numbers in groups of five for your pagination needs using JavaScript. We break down the solution step-by-step for clarity.
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Dynamically Generating Page Numbers for Pagination in JavaScript

Pagination can be a tricky element of web development, especially when you need to present data in a user-friendly format. For many, dynamically generating pagination values can present a challenge. If you're working on a pagination system where you need to display page numbers in groups of five, this guide is just for you!

The Problem with Hardcoding

When implementing pagination, many developers use hardcoded values like this:

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

While this works, it's not efficient. As your pagination requirement grows, maintaining hardcoded values becomes cumbersome. Instead, it makes sense to create a dynamic solution that calculates the groups of numbers based on the current page.

A Dynamic Solution

Step 1: Calculating the Starting Page

To create a dynamic set of page numbers, follow these steps:

Divide the currentPage by 5.

Round that value up, and subtract 1 to get the correct starting index for your page numbers.

Create an array of 5 items starting from (value * 5) + 1, incrementing these values.

Step 2: Implementing the Code

Here’s how you can implement this logic in JavaScript:

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

Explanation of the Code

startingPageMultiple - 1: Adjusts the index to align with our need of page numbers.

Array(5).fill().map(...): This creates an array of five items and fills it with the computed values.

Conclusion

This solution simplifies pagination for web applications, making it easier to maintain and scale. By avoiding hardcoded values, your pagination logic becomes more adaptable and efficient. The example function allows you to generate five clickable page numbers based on the current page dynamically.

With this newfound skill, you can enhance the user experience on your applications with seamless pagination.