Your drop surface will depend on the design of your application. You may only want part of the window to be a drop surface, or potentially the entire window. Whatever you choose as your drop zone, make sure it's clear to the user that they can drag-and-drop files onto that surface.
To enable an element to be a drag-and-drop zone, you'll need to listen for two events, dragover and drop. The dragover event updates the browser UI to visually indicate that the drag-and-drop action is creating a copy of the file. The drop event is fired after the user has dropped the files onto the surface. Similar to the input element, you can access the list of files from event. Without them, the browser would otherwise navigate away from your page and open the files the user dropped into the browser window.
Check out Custom drag-and-drop for a live demonstration. It is supported in some Chromium-based browsers, and possibly desktop Safari, but has conflicting reports of browser compatibility.
A number specifying the date and time at which the file was last modified, in milliseconds since the UNIX epoch January 1, at midnight. A Date object representing the date and time at which the file was last modified. This is deprecated and should not be used. Use lastModified instead. A string specifying the file's path relative to the base directory selected in a directory picker that is, a file picker in which the webkitdirectory attribute is set.
This is non-standard and should be used with caution. Often you won't want the user to be able to pick any arbitrary type of file; instead, you often want them to select files of a specific type or types.
For example, if your file input lets users upload a profile picture, you probably want them to select web-compatible image formats, such as JPEG or PNG. Acceptable file types can be specified with the accept attribute, which takes a comma-separated list of allowed file extensions or MIME types. Some examples:. It may look similar, but if you try selecting a file with this input, you'll see that the file picker only lets you select the file types specified in the accept value the exact interface differs across browsers and operating systems.
The accept attribute doesn't validate the types of the selected files; it provides hints for browsers to guide users towards selecting the correct file types. It is still possible in most cases for users to toggle an option in the file chooser that makes it possible to override this and select any file they wish, and then choose incorrect file types. Because of this, you should make sure that the accept attribute is backed up by appropriate server-side validation.
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