Represents a raw buffer of binary data, which is used to store data for the different typed arrays. ArrayBuffers cannot be read from or written to directly, but can be passed to a typed array or DataView Object to interpret the raw buffer as needed.
readonly
byteLength: number
Read-only. The length of the ArrayBuffer (in bytes).
slice(begin: number,end?: number,): ArrayBuffer
Returns a section of an ArrayBuffer.