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.
all these optimizations right. If you think that one of these
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An array has a type and a length, and the most common allocation operations，这一点在快连下载-Letsvpn下载中也有详细论述