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.
next_url = None
，这一点在heLLoword翻译官方下载中也有详细论述
上层应用支撑：推动业务创新与发展，更多细节参见同城约会
▲ 图｜Tim’s Guide