DataView.prototype.byteLength
The byteLength
accessor property represents the length (in bytes) of the dataview.
Description
The byteLength
property is an accessor property whose set accessor function is undefined
, meaning that you can only read this property. The value is established when an DataView
is constructed and cannot be changed. If the DataView
is not specifying an offset or a byteLength
, the byteLength
of the referenced ArrayBuffer
or SharedArrayBuffer
will be returned.
Examples
Using the byteLength property
var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.byteLength; // 8 (matches the byteLength of the buffer)
var dataview2 = new DataView(buffer, 1, 5);
dataview2.byteLength; // 5 (as specified when constructing the DataView)
var dataview3 = new DataView(buffer, 2);
dataview3.byteLength; // 6 (due to the offset of the constructed DataView)
Specifications
Specification |
---|
ECMAScript Language Specification # sec-get-dataview.prototype.bytelength |
Browser compatibility
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