Remove a FileList item from a multiple "input:file" in HTML5

When working with HTML5 file inputs, you cannot directly modify the FileList object returned by input.files. The FileList is read-only, so removing items requires converting it to an array first.

The Problem

The FileList object from file inputs is immutable:

Show Files
Try Direct Removal

Method 1: Convert to Array and Filter

Convert the FileList to an array, then filter out unwanted files:

Remove First File

Method 2: Remove by Index

Remove a specific file by its index position:

Remove File at Index 1

Method 3: Remove by Filename

Filter out files based on their names:

Remove File

Key Points

• FileList objects are read-only and cannot be modified directly
• Use Array.from() to convert FileList to a modifiable array
• DataTransfer API helps recreate a new FileList after modifications
• Always check if files exist before attempting removal

Browser Compatibility

Conclusion

Since FileList is read-only, convert it to an array using Array.from(), modify as needed, then recreate the FileList using DataTransfer. This approach provides flexible file management in HTML5 applications.