Web File API
The Web File API is a JavaScript API that provides web applications with the ability to read, write, and manage files on the user's local system in a secure, sandboxed manner. It enables features such as file uploads, drag-and-drop file handling, and client-side file processing without requiring server-side interaction. This API is part of the broader HTML5 specification and is supported by modern web browsers.
Developers should learn the Web File API when building web applications that require user file interactions, such as photo editors, document processors, or data import tools, as it allows for efficient client-side file handling and reduces server load. It is particularly useful for applications that need to process files before uploading, validate file formats, or provide real-time previews, enhancing user experience and performance.