The slice() method of SharedArrayBuffer instances returns a
new SharedArrayBuffer whose contents are a copy of this
SharedArrayBuffer's bytes from begin, inclusive, up to end, exclusive. If
either begin or end is negative, it refers to an index from the end of the array, as
opposed to from the beginning. This method has the same algorithm as
Array.prototype.slice.
Syntax
slice()
slice(begin)
slice(begin, end)
Parameters
begin: Zero-based index at which to begin extraction.
A negative index can be used, indicating an offset from the end of the sequence.
slice(-2)extracts the last two elements in the sequence.If
beginis undefined,slicebegins from index0.
end: Zero-based index before which to end extraction.
sliceextracts up to but not includingend.For example,
slice(1,4)extracts the second element through the fourth element (elements indexed 1, 2, and 3).A negative index can be used, indicating an offset from the end of the sequence.
slice(2,-1)extracts the third element through the second-to-last element in the sequence.If
endis omitted,sliceextracts through the end of the sequence (sab.byteLength).
Return value
A new SharedArrayBuffer containing the extracted elements.
Examples
Using slice()
const sab = new SharedArrayBuffer(1024);
sab.slice(); // SharedArrayBuffer { byteLength: 1024 }
sab.slice(2); // SharedArrayBuffer { byteLength: 1022 }
sab.slice(-2); // SharedArrayBuffer { byteLength: 2 }
sab.slice(0, 1); // SharedArrayBuffer { byteLength: 1 }