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Creating a Drag-and-Drop File Upload System in JavaScript Without Frameworks
- The article discusses creating a drag-and-drop file upload system in JavaScript without depending on any frameworks.
- The uploader supports drag-and-drop, file previews, and real-time progress bar.
- Instead of using a library, the uploader was built using vanilla JavaScript, File API, DragEvent, and XMLHttpRequest.
- The uploader is clean, maintainable, and fast, and can be reused across multiple projects.
- The process involves setting up an HTML structure for the drop zone and preview area.
- Drag events are captured to provide visual feedback.
- File names and thumbnails are displayed before uploading.
- XMLHttpRequest is used to send files and update the progress bar.
- A backend is needed to receive and store the uploaded files.
- Client and server adjustments are made to support batch uploads.
- Before uploading, files are checked locally.
- Users can manually retry failed uploads.
- The uploader is customizable and works on various browsers.
- It is a module in custom admin tools, supporting modern Chrome and Electron.
- The uploader is lightweight and flexible.
- The uploader is designed to work smoothly without relying on external frameworks.
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