JS 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
.
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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
Errors thrown
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
Specification | Status | Comment |
---|---|---|
DataView.prototype.setBigInt64 proposal |