FileReader.readAsArrayBuffer()

The FileReader interface's readAsArrayBuffer() method is used to start reading the contents of a specified Blob or File. When the read operation is finished, the readyState becomes DONE, and the loadend is triggered. At that time, the result attribute contains an ArrayBuffer representing the file's data.

Note: The Blob.arrayBuffer() method is a newer promise-based API to read a file as an array buffer.

Syntax

readAsArrayBuffer(blob)

Parameters

blob

The Blob or File from which to read.

Return value

None (undefined).

Specifications

Specification
File API
# readAsArrayBuffer

Browser compatibility

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See also