Immutable list implementation in JavaScript without [] and {} Posted by medv on Saturday July 22, 2017 @03:59AM from the medv.io dept. https://medv.io/immutable-list-implementation/ ( 1 comment | 2 points | on HN )
it was never on by default in v8 and it was completely removed recently which makes me sad
https://bugs.chromium.org/p/v8/issues/detail?id=4698#c69