My point wasn't to say you should never do byte manipulation in Javascript, but that for these rare edge cases the existing capabilities without a native int ar

My point wasn't to say you should never do byte manipulation in Javascript, but that for these rare edge cases the existing capabilities without a native int are fine and if you would really need the native int rather than some equivalent work around (which I assume is most likely due to performance considerations) a faster language is the better approach. A webgame might be able to use wasm for that.