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dataView.getBigInt64

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

Syntax

dataview.getBigInt64(byteOffset [, littleEndian])

Parameters

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.

Return value

A BigInt.

Errors thrown

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

Description

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

Examples

Using the getBigInt64 method

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

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
getBigInt64 67 79 68 No 54 No
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
getBigInt64 67 67 68 48 No 9.0
Server
Node.js
getBigInt64 10.4.0

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getBigInt64