File
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package html
Closes the blob object, possibly freeing underlying resources.
Closes the blob object, possibly freeing underlying resources.
A boolean value, indicating whether the Blob.close() method has been called on the blob.
A boolean value, indicating whether the Blob.close() method has been called on the blob. Closed blobs can not be read.
Returns the last modified time of the file, in millisecond since the UNIX epoch (January 1st, 1970 at Midnight).
Returns the last modified date of the file.
Returns the last modified date of the file. Files without a known last modified date returns the current date.
Returns the name of the file referenced by the File object.
The size, in bytes, of the data contained in the Blob object.
The size, in bytes, of the data contained in the Blob object.
Returns a new Blob object containing the data in the specified range of bytes of the source Blob.
Returns a new Blob object containing the data in the specified range of bytes of the source Blob.
An index into the Blob indicating the first byte to include in the new Blob. If you specify a negative value, it's treated as an offset from the end of the string toward the beginning. For example, -10 would be the 10th from last byte in the Blob. The default value is 0. If you specify a value for start that is larger than the size of the source Blob, the returned Blob has size 0 and contains no data.
An index into the Blob indicating the first byte that will *not* be included in the new Blob (i.e. the byte exactly at this index is not included). If you specify a negative value, it's treated as an offset from the end of the string toward the beginning. For example, -10 would be the 10th from last byte in the Blob. The default value is size.
The content type to assign to the new Blob; this will be the value of its type property. The default value is an empty string.
A new Blob object containing the specified data from the source Blob.
var blob = instanceOfBlob.slice([start [, end [, contentType]]]);
The size, in bytes, of the data contained in the Blob object.
The size, in bytes, of the data contained in the Blob object.
The File.webkitRelativePath is a read-only property that contains a DOMString with the path relative to the directory selected when the webkitdirectory has been set on the element.
The File.webkitRelativePath is a read-only property that contains a DOMString with the path relative to the directory selected when the webkitdirectory has been set on the element.
The File interface provides information about files and allows JavaScript in a web page to access their content.
File objects are generally retrieved from a FileList object returned as a result of a user selecting files using the element, from a drag and drop operation's DataTransfer object, or from the mozGetAsFile() API on an HTMLCanvasElement. In Gecko, privileged code can create File objects representing any local file without user interaction (see Gecko notes for more information.) A File object is a specific kind of a [[Blob]], and can be used in any context that a Blob can. In particular, [[FileReader]], URL.createObjectURL(), createImageBitmap(), and XMLHttpRequest.send() accept both Blobs and Files.
https://developer.mozilla.org/en-US/docs/Web/API/File