Packages

class Blob extends Object

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
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  1. Blob
  2. Object
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Instance Constructors

  1. new Blob(blobParts: Iterable[BlobPart], options: BlobPropertyBag = js.native)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def arrayBuffer(): Promise[ArrayBuffer]

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

  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def hasOwnProperty(v: String): Boolean
    Definition Classes
    Object
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. def isPrototypeOf(v: Object): Boolean
    Definition Classes
    Object
  15. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  17. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. def propertyIsEnumerable(v: String): Boolean
    Definition Classes
    Object
  19. def size: Double

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

  20. 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.

  21. def stream(): ReadableStream[Uint8Array]

    Returns a ReadableStream that can be used to read the contents of the blob.

  22. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  23. 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

  24. def toLocaleString(): String
    Definition Classes
    Object
  25. def toString(): String
    Definition Classes
    AnyRef → Any
  26. 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.

  27. def valueOf(): Any
    Definition Classes
    Object
  28. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Deprecated Value Members

  1. def close(): Unit
    Annotations
    @deprecated
    Deprecated

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

Inherited from Object

Inherited from Any

Inherited from AnyRef

Inherited from Any

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