Blob class abstract

The Blob interface represents a blob, which is a file-like object of immutable, raw data; they can be read as text or binary data, or converted into a ReadableStream so its methods can be used for processing the data.

Blobs can 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.

API documentation sourced from MDN Web Docs.

Constructors

Blob([List<BlobPart>? blobParts, BlobPropertyBag? options])

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size → int
The slice() method of the Blob interface creates and returns a new Blob object which contains data from a subset of the blob on which it's called. The stream() method of the Blob interface returns a ReadableStream which upon reading returns the data contained within the Blob. The text() method of the Blob interface returns a Promise that resolves with a string containing the contents of the blob, interpreted as UTF-8. The arrayBuffer() method of the Blob interface returns a Promise that resolves with the contents of the blob as binary data contained in an ArrayBuffer. The size read-only property of the Blob interface returns the size of the Blob or File in bytes.
no setter
type → String
The type read-only property of the Blob interface returns the of the file.
no setter

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