The File()
constructor creates a new File
object instance.
Syntax
var myFile = new File(bits, name[, options]);
Parameters
- bits
- An
Array
of ArrayBuffer
, ArrayBufferView
, Blob
, or DOMString
objects — or a mix of any such objects. This is the file content encoded as UTF-8.
- name
- A
USVString
representing the file name or the path to the file.
- options Optional
- An options object containing optional attributes for the file. Available options are as follows:
type
: A DOMString
representing the MIME type of the content that will be put into the file. Defaults to a value of "".
lastModified
: A number representing the number of milliseconds between the Unix time epoch and when the file was last modified. Defaults to a value of Date.now()
.
Example
var file = new File(["foo"], "foo.txt", {
type: "text/plain",
});
Specifications
Specification |
Status |
Comment |
File API |
Working Draft |
Initial definition |
Browser compatibility
Feature |
Chrome |
Edge |
Firefox (Gecko) |
Internet Explorer |
Opera |
Safari (WebKit) |
Basic support |
13 |
No support |
7 (7) |
No support |
11.5 |
10.1 |
Feature |
Android |
Edge |
Firefox Mobile (Gecko) |
IE Phone |
Opera Mobile |
Safari Mobile |
Basic support |
4.4.4 |
(Yes) |
7.0 (7) |
No support |
No support |
6.0 |
See also
Document Tags and Contributors