The Javascript BigUint64Array byteOffset property returns the offset in bytes of a typed array from the start of its ArrayBuffer.
BigUint64Array.byteOffset
The Javascript BigUint64Array byteOffset property is a read only property.
The value is set when a BigUint64Array is created and cannot be changed.
Using the Javascript BigUint64Array byteOffset property
var buffer = new ArrayBuffer(8); var uint8 = new BigUint64Array(buffer); console.log(uint8.byteOffset); // 0 (no offset specified) var uint8 = new BigUint64Array(buffer, 3); console.log(uint8.byteOffset); // 3 (as specified when constructing BigUint64Array)