The getBigUint64()
method gets an unsigned 64-bit integer (unsigned long long) at the specified byte offset from the start of the DataView
.
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Syntax
dataview.getBigUint64(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
orundefined
, 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 getBigUint64
method
var buffer = new ArrayBuffer(8); var dataview = new DataView(buffer); dataview.getBigUint64(0); // 0n
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'DataView.prototype.getBigUint64()' in that specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
getBigUint64 | Chrome Full support 67 | Edge Full support 79 | Firefox Full support 68 | IE No support No | Opera Full support 54 | Safari No support No | WebView Android Full support 67 | Chrome Android Full support 67 | Firefox Android Full support 68 | Opera Android Full support 48 | Safari iOS No support No | Samsung Internet Android Full support 9.0 | nodejs Full support 10.4.0 |
Legend
- Full support
- Full support
- No support
- No support