The problem compounds in pipelines. Each TransformStream adds another layer of promise machinery between source and sink. The spec doesn't define synchronous fast paths, so even when data is available immediately, the promise machinery still runs.
// Producers are supposed to wait for the writer.ready
。im钱包官方下载对此有专业解读
输出：[3,1,2,1,1,0]，推荐阅读safew官方下载获取更多信息
Дарья Устьянцева (редактор отдела «Мир»)。同城约会是该领域的重要参考
If you look at all of the JS glue code for the single call to console.log above, you’ll see that there is a lot of overhead. Engines have spent a lot of time optimizing this, and more work is underway. Yet this problem still exists. It doesn’t affect every workload, but it’s something every WebAssembly user needs to be careful about.