How to Upload Multiple Files in React.JS and Display Their Names

Learn how to easily upload multiple files using React.JS and have their names displayed in your application. Get step-by-step instructions and sample code.
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How to Upload Multiple Files in React.JS and Display Their Names

Uploading multiple files using React.JS can be a common requirement for many applications. Whether you're building a photo gallery, a file sharing app, or an administrative interface, allowing users to upload multiple files at once enhances user experience. In this guide, we'll explore how to implement this feature effectively, allowing the names of the uploaded files to be displayed in the UI.

The Problem

When users need to upload multiple files, they often want to see a list of selected files before submission. This functionality helps to confirm that they've selected the correct files. To achieve this in React.JS, we need to manage file selections, update the component state, and render the file names on the UI.

Step-by-Step Solution

Let's break down the process into several clear steps:

1. Set Up the File Input

First, you'll need an input element in your component, which allows users to select files. By using the multiple attribute, you enable selecting more than one file.

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

2. Handling File Changes

You will create a function to handle the file input changes. This method will extract the selected files and store their names. Here's how you can set that up:

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

3. Storing Selected Files

When files are added, we can store them in the component's state. You can utilize the setState method to save both the file objects and their names.

4. Displaying File Names

Finally, to display the names of the uploaded files in the UI, you can integrate a simple rendering function. Here's an example:

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

This code will loop over the selectedFileNames array and display each file name in a div.

Conclusion

By following these steps, you can easily implement a multiple file upload feature in your React.JS application. This user-friendly functionality not only improves user experience but also ensures that users can preview their selections before final submission. The code snippets provided will get you off to a great start!

Feel free to modify the UI as per your requirements. Happy coding!

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