Blob

package js.html

extended by File

Available on js

A Blob object represents 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.

Documentation Blob by Mozilla Contributors, licensed under CC-BY-SA 2.5.

See also:

• https://developer.mozilla.org/en-US/docs/Web/API/Blob

Constructor

new(?blobParts:Array<EitherType<ArrayBuffer, EitherType<ArrayBufferView, EitherType<Blob, String>>>>, ?options:Null<BlobPropertyBag>)

Throws:

null	DOMError

Variables

read onlysize:Int

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

read onlytype:String

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

Methods

slice(?start:Int, ?end:Int, ?contentType:String):Blob

Returns a new Blob object containing the data in the specified range of bytes of the source Blob.

Throws:

null	DOMError