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dataView.setBigInt64

The setBigInt64() method stores a signed 64-bit integer (long long) value at the specified byte offset from the start of the DataView.

Syntax

dataview.setBigInt64(byteOffset, value [, littleEndian])

Parameters

byteOffset
The offset, in bytes, from the start of the view to store the data from.
value
The value to set as a BigInt. The highest possible value that fits in a signed 64-bit integer is 2n ** (64n -1n) - 1n (9223372036854775807n). Upon overflow, it will be negative (-9223372036854775808n).
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 written.

Return value

undefined.

Errors thrown

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

Examples

Using the setBigInt64 method

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.setBigInt64(0, 3n);
dataview.getBigInt64(0); // 3n

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
setBigInt64 67 79 68 No 54 No
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
setBigInt64 67 67 68 48 No 9.0
Server
Node.js
setBigInt64 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/setBigInt64