Blob class

A file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.

MDN Reference

Implementers

• File

Constructors

Blob(Iterable<Object> blobParts, {EndingType endings = EndingType.transparent, String type = ''})

Creates a new Blob object from a String | TypedData | ArrayBuffer | Blob.

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

size → int

The size, in bytes, of the data contained in the Blob object.

no setter

type → String

A string indicating the MIME type of the data contained in the Blob. If the type is unknown, this string is empty.

final

Methods

arrayBuffer() → Future<ArrayBuffer>

Returns a promise that resolves with an ArrayBuffer containing the entire contents of the Blob as binary data.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

slice([int? start, int? end, String? contentType]) → Blob

Returns a new Blob object containing the data in the specified range of bytes of the blob on which it's called.

stream() → Stream<Uint8List>

Returns a Stream that can be used to read the contents of the Blob.

text() → Future<String>

Returns a promise that resolves with a string containing the entire contents of the Blob interpreted as UTF-8 text.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited