byteLength Property (ArrayBuffer)
Read-only. The length of the ArrayBuffer (in bytes).
The following example shows how to get the byte length of the ArrayBuffer.
Supported in the following document modes: Internet Explorer 10 standards and Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.
Not supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards.