DataView.prototype.getBigInt64()

The getBigInt64() method gets a signed 64-bit integer (long long) at the specified byte offset from the start of the DataView.

Syntax

getBigInt64(byteOffset)
getBigInt64(byteOffset, littleEndian)

byteOffset: The offset, in bytes, from the start of the view to read the data from.
littleEndian: Optional Indicates whether the 64-bit int is stored in little- or big-endian format. If false or undefined, a big-endian value is read.

RangeError: Thrown if the byteOffset is set such that it would read beyond the end of the view.

There is no alignment constraint; multi-byte values may be fetched from any offset.

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.getBigInt64(0); // 0n

Specification
ECMAScript Language Specification # sec-dataview.prototype.getbigint64

	desktop						mobile						server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	Deno	Node.js
`getBigInt64`	ChromeFull support67	EdgeFull support79	FirefoxFull support68	Internet ExplorerNo supportNo	OperaFull support54	SafariFull support15	WebView AndroidFull support67	Chrome AndroidFull support67	Firefox for AndroidFull support68	Opera AndroidFull support48	Safari on iOSFull support15	Samsung InternetFull support9.0	DenoFull support1.0	Node.jsFull support10.4.0