The File()
constructor creates a new File
object instance.
Syntax
new File(bits, name[, options]);
Parameters
bits
- An
Array
ofArrayBuffer
,ArrayBufferView
,Blob
,USVString
objects, or a mix of any of such objects, that will be put inside theFile
.USVString
objects are 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
: ADOMString
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 ofDate.now()
.
Example
var file = new File(["foo"], "foo.txt", { type: "text/plain", });
Specifications
Specification | Status | Comment |
---|---|---|
File API | Working Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
File() constructor | Chrome Full support 13 | Edge Full support 79 | Firefox Full support 7 | IE No support No | Opera Full support 11.5 | Safari Full support 10.1 | WebView Android Full support ≤37 | Chrome Android Full support 18 | Firefox Android Full support 7 | Opera Android Full support 11.5 | Safari iOS Full support 6 | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- No support
- No support