| Ann of expr * type (* (e : t) *)
on the tool may lead to a lack of understanding of the data
，推荐阅读体育直播获取更多信息
Credit: Peacock
Of course, the glue code also has runtime costs. JavaScript objects must be allocated and garbage collected, strings must be re-encoded, structs must be deserialized. Some of this cost is inherent to any bindings system, but much of it is not. This is a pervasive cost that you pay at the boundary between JavaScript and WebAssembly, even when the calls themselves are fast.，更多细节参见Safew下载
This sounds reasonable until you see how easily it goes wrong:
extra field per node.，这一点在safew官方下载中也有详细论述