Blob

A Blob object represents 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.

To construct a Blob from other non-blob objects and data, use the Blob() constructor. To create a blob that contains a subset of another blob's data, use the slice() method. To obtain a Blob object for a file on the user's file system, see the File documentation.

The APIs accepting Blob objects are also listed in the File documentation.

Annotations: @JSType() @native() @JSGlobal()

Linear Supertypes

Object, Any, AnyRef, Any

Known Subclasses

File

Instance Constructors

new Blob(blobParts: Array[Any] = js.native, options: BlobPropertyBag = js.native)

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def arrayBuffer(): Promise[ArrayBuffer]

Returns a promise that resolves with an ArrayBuffer containing the entire contents of the blob as binary data.
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hasOwnProperty(v: String): Boolean

Definition Classes
Object
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def isPrototypeOf(v: Object): Boolean

Definition Classes
Object
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def propertyIsEnumerable(v: String): Boolean

Definition Classes
Object
def size: Double

The size, in bytes, of the data contained in the Blob object.
def slice(start: Double = js.native, end: Double = js.native, contentType: String = js.native): Blob

A string indicating the MIME type of the data contained in the Blob.
A string indicating the MIME type of the data contained in the Blob. If the type is unknown, this string is empty.
def stream(): ReadableStream[Uint8Array]

Returns a ReadableStream that can be used to read the contents of the blob.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def text(): Promise[String]

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

See also
https://developer.mozilla.org/en-US/docs/Web/API/USVString
def toLocaleString(): String

Definition Classes
Object
def toString(): String

Definition Classes
AnyRef → Any
def type: String

A string indicating the MIME type of the data contained in the Blob.
A string indicating the MIME type of the data contained in the Blob. If the type is unknown, this string is empty.
def valueOf(): Any

Definition Classes
Object
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Deprecated Value Members

def close(): Unit

Annotations
@deprecated
Deprecated
(Since version 1.2.0) This method seems to have been added in error and not actually exist.

Related Docs: object Blob | package dom

class Blob extends Object

Instance Constructors

new Blob(blobParts: Array[Any] = js.native, options: BlobPropertyBag = js.native)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def arrayBuffer(): Promise[ArrayBuffer]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hasOwnProperty(v: String): Boolean

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def isPrototypeOf(v: Object): Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def propertyIsEnumerable(v: String): Boolean

def size: Double

def slice(start: Double = js.native, end: Double = js.native, contentType: String = js.native): Blob

def stream(): ReadableStream[Uint8Array]

final def synchronized[T0](arg0: ⇒ T0): T0

def text(): Promise[String]

def toLocaleString(): String

def toString(): String

def type: String

def valueOf(): Any

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Deprecated Value Members

def close(): Unit

Inherited from Object

Inherited from Any

Inherited from AnyRef

Inherited from Any

Ungrouped