File class

The interface provides information about files and allows JavaScript in a web page to access their content. objects are generally retrieved from a FileList object returned as a result of a user selecting files using the <input> element, from a drag and drop operation's DataTransfer object, or from the mozGetAsFile() API on an HTMLCanvasElement. A 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 s. See Using files from web applications for more information and examples.

Blob

File

Implemented types

• Blob

Available Extensions

• PropsBlob
• PropsFile

Annotations

• @JS()
• @staticInterop

Constructors

File(Iterable fileBits, String fileName, [FilePropertyBag? options])

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited