Скачать или смотреть How to Easily Handle JSON Parsing in React JS for a Dynamic Side Menu

Discover how to effectively parse JSON data in React JS to build a dynamic side menu, using simple array map functions.
---
This video is based on the question https://stackoverflow.com/q/72724574/ asked by the user 'Amron Norma' ( https://stackoverflow.com/u/11948509/ ) and on the answer https://stackoverflow.com/a/72729991/ provided by the user 'iphonic' ( https://stackoverflow.com/u/790842/ ) 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: JSON parsing in React JS for side menu

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.
---
Building a Dynamic Side Menu with JSON Parsing in React JS

Creating an interactive side menu in React can seem daunting, especially when dealing with structured JSON data. If you're looking to build a menu dynamically from JSON, you're in the right place! In this guide, we'll walk through how to parse JSON data in React JS to create a side menu for an application.

The Problem: JSON Structure

You have a specific JSON structure that you want to parse in order to build a functional side menu for your app. Here’s the JSON structure you’re working with:

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

Your desired output for this nested side menu should look like this:

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

The Solution: Using Array.map Function

To achieve this output, we can employ the Array.map function effectively. The idea is to navigate through the JSON structure, extracting the necessary information to display the menu. Let's break it down step-by-step.

Step 1: Initialize Your Variables

First, make sure your JSON data is properly defined and ready to be parsed. You can use the variable a as defined above.

Step 2: Define the Menu Items Array

Create an empty array to store the formatted menu items.

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

Step 3: Map Through the Main JSON Array

Utilizing the map() function, loop through each menu item in the array:

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

Navigation through subMenus: For each menu, we will look at its subMenus to extract the nested categories and items.

Dynamic Key Handling: The use of Object.keys() helps fetch keys dynamically, whether they be "First", "Second," or others.

Step 4: Output the Results

Finally, log or render your formatted menuItems array to check the output.

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

This completes the parsing of your JSON data and formats it for easy display as a side menu.

Conclusion

Parsing JSON data in React to create dynamic elements like side menus doesn’t have to be complex. By effectively using the Array.map() function, you can traverse through various layers of JSON objects and arrays to generate the desired structure automatically.

With this knowledge, you'll be able to adapt and expand your side menu as your application scales! Happy coding!