ArrayBuffer.prototype.slice()
The slice()
method returns a new ArrayBuffer
whose contents are a copy of this ArrayBuffer
's bytes from
begin
, inclusive, up to end
, exclusive.
Try it
Syntax
js
slice(begin)
slice(begin, end)
Parameters
begin
-
Zero-based byte index at which to begin slicing.
end
Optional-
Byte index before which to end slicing. If end is unspecified, the new
ArrayBuffer
contains all bytes from begin to the end of thisArrayBuffer
. If negative, it will make the Byte index begin from the last Byte.
Return value
A new ArrayBuffer
object.
Description
The slice()
method copies up to, but not including, the byte indicated by
the end
parameter. If either begin
or end
is
negative, it refers to an index from the end of the array, as opposed to from the
beginning.
The range specified by the begin
and end
parameters is
clamped to the valid index range for the current array. If the computed length of the
new ArrayBuffer
would be negative, it is clamped to zero.
Examples
Copying an ArrayBuffer
js
const buf1 = new ArrayBuffer(8);
const buf2 = buf1.slice(0);
Specifications
Specification |
---|
ECMAScript Language Specification # sec-arraybuffer.prototype.slice |
Browser compatibility
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