kotlin-web/web.blob/Blob

Blob

open class Blob(blobParts: ReadonlyArray<BlobPart> = definedExternally, options: BlobPropertyBag = definedExternally) : ImageBitmapSource, Serializable(source)

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.

MDN Reference

Inheritors

File

Constructors

Blob

constructor(blobParts: ReadonlyArray<BlobPart> = definedExternally, options: BlobPropertyBag = definedExternally)

Properties

size

val size: UInt53

The size read-only property of the Blob interface returns the size of the Blob or File in bytes.

type

val type: String

The type read-only property of the Blob interface returns the MIME type of the file.

Functions

arrayBuffer

inline suspend fun Blob.arrayBuffer(): ArrayBuffer

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.

arrayBufferAsync

fun arrayBufferAsync(): Promise<ArrayBuffer>

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.

byteArray

suspend fun Blob.byteArray(): ByteArray

bytes

inline suspend fun Blob.bytes(): Uint8Array<ArrayBuffer>

The bytes() method of the Blob interface returns a Promise that resolves with a Uint8Array containing the contents of the blob as an array of bytes.

bytesAsync

fun bytesAsync(): Promise<Uint8Array<ArrayBuffer>>

The bytes() method of the Blob interface returns a Promise that resolves with a Uint8Array containing the contents of the blob as an array of bytes.

slice

fun slice(start: Int53 = definedExternally, end: Int53 = definedExternally, contentType: String = definedExternally): Blob

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.

stream

fun stream(): ReadableStream<Uint8Array<ArrayBuffer>>

The stream() method of the Blob interface returns a ReadableStream which upon reading returns the data contained within the Blob.

text

inline suspend fun Blob.text(): String

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.

textAsync

fun textAsync(): Promise<JsString>

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.