Скачать или смотреть Solving Pagination Issues in React JS

Struggling with pagination in React JS? Discover how to effectively implement pagination when fetching articles from an API with our detailed guide!
---
This video is based on the question https://stackoverflow.com/q/70111424/ asked by the user 'Muhammad Furqan' ( https://stackoverflow.com/u/17097409/ ) and on the answer https://stackoverflow.com/a/70111481/ provided by the user 'abhi patil' ( https://stackoverflow.com/u/14005136/ ) 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: I am facing a problem in Pagination using states in React JS

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

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Solving Pagination Issues in React JS: A Step-by-Step Guide

Pagination is a powerful tool for managing large sets of data, ensuring users can navigate your site without feeling overwhelmed. However, when implementing pagination in React JS, it's easy to run into some common pitfalls. Today, we'll look into a problem many React developers face—pagination issues when fetching articles via an API. We'll break down the solution step-by-step, enabling you to smoothly display articles across multiple pages.

Understanding the Problem

Imagine you're building a news article application that fetches data from an API. The API returns a total of 26 articles, but your implementation only displays 20 articles per page. Your goal is to set up pagination in such a way that the remaining articles are accessible on the next pages. This is where things can get tricky.

The Initial Code Setup

Here’s a brief overview of the initial setup for fetching articles:

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

In this snippet, the intention is to fetch articles based on the current page. However, there’s a critical oversight: the useEffect hook does not re-run when the page state changes!

The Solution: Updating the useEffect Dependency

To make your API call respond to changes in the page state, you need to add page to the useEffect dependency array. Here’s the corrected code:

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

What Changed?

Dependency Array: By adding [page], useEffect will re-run the API call every time the page number changes, thus fetching the correct set of articles.

Streamlining the Pagination Handlers

Next, we need to make your pagination functions more efficient. The original implementation called the API again from both nextPageHandler and prevPageHandler, which is unnecessary. Instead, just update the page when navigating:

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

Why This Works

State Management: Using prevPage ensures we correctly update the state without additional calls to the API at this stage.

Clarity: The code becomes more manageable and easier to read, promoting better practices.

Conclusion

By integrating these changes, you should seamlessly implement pagination in your React application. With a correctly set up dependency array for your useEffect and streamlined pagination handlers, fetching and displaying articles becomes efficient.

If you're building a news application or similar project, don't hesitate to experiment with these concepts. Happy coding!