Creates a new Blob
object containing a concatenation of the given sources.
{ArrayBuffer}, {TypedArray}, {DataView}, and {Buffer} sources are copied into the 'Blob' and can therefore be safely modified after the 'Blob' is created.
String sources are also copied into the Blob
.
Optional
options: BlobOptionsReadonly
sizeThe total size of the Blob
in bytes.
Readonly
typeThe content-type of the Blob
.
Returns a promise that fulfills with an ArrayBuffer containing a copy of
the Blob
data.
The blob.bytes()
method returns the byte of the Blob
object as a Promise<Uint8Array>
.
const blob = new Blob(['hello']);
blob.bytes().then((bytes) => {
console.log(bytes); // Outputs: Uint8Array(5) [ 104, 101, 108, 108, 111 ]
});
Returns a new ReadableStream
that allows the content of the Blob
to be read.
A
Blob
encapsulates immutable, raw data that can be safely shared across multiple worker threads.Since
v15.7.0, v14.18.0