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ArrayBuffer <-> Buffer interop? #177
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The discussion around that is currently going on over here, I do believe!
@YuriSolovyov You can convert an
ArrayBufferto aBuffertrivially (with a copy) like this:new Buffer(new Uint8Array(arrayBuffer))There used to be a
buffer.toArrayBuffer()method, but it was removed by @trevnorris because of a memory leak.@feross
new Buffer(new Uint8Array(arrayBuffer))is slow: https://github.com/iojs/io.js/blob/v1.x/lib/buffer.js#L91@vkurchatkin correct. it is slow. though the only way to "correctly" do it would be to
ExternalizetheArrayBufferthen do thememcpy. I'm fine experimenting with it, or entertaining a PR that does the same.- added a commit that references this issue
on Oct 10, 2016
Any updates on this?
If I remember correctly it had some performance problems, but v8 changed a lot since then.
It could be useful for "mixed" node environments such as
node-webkitandatom-shell, where you have browser-side APIs that deals only withArrayBuffer.So request is to have symmetrical
Buffer.toArrayBuffer()andBuffer.from(ArrayBuffer)API, or some other way to make one from the other.