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README.md

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@@ -125,25 +125,31 @@ Tracking issues to be added:
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Why can't an immutable ArrayBuffer be detached/transferred?
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Because that would result in observable changes to any TypedArray or DataView backed by it.
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Should the index properties of a TypedArray backed by an immutable ArrayBuffer be configurable and writable?
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No, TypedArray index properties should continue to track the state of the underlying buffer without individual bookkeeping.
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Should ArrayBuffers support zero-copy slices (e.g., `arrayBuffer.sliceToImmutable()`)? https://github.com/tc39/proposal-immutable-arraybuffer/issues/9
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Yes. As agreed at the December tc39 plenary, we won't specify that the implementation be zero-copy. But providing this operation ***enables*** some implementations to easily implement it as zero-copy.
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Should the new getter be name `immutable` or `mutable`? https://github.com/tc39/proposal-immutable-arraybuffer/issues/10
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`immutable`. As agreed at the December tc39 plenary, by following the defaults-to-false principle, feature tests such as `if (buf.immutable) {` will be falsy on engines that have not yet implemented this proposal.
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We will drive the resolution to this from implementor feedback. But when this by itself is not a deciding factor, we prefer failure to throw rather than be silent. This existing XS implementation follows that principle.
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