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· · 来源:dev资讯

The memory management in DOS is simple, but that simplicity may be deceptive. There are several rather interesting pitfalls that programming documentation often does not mention.

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Yet in practice, it sometimes turns out that a setup of some complex scenarios, especially corner cases, takes too much effort/code. Or there are algorithms that, for the time being, are used only with limited parameters, but we should exercise the whole implementation in tests. There might be a similar situation with complex Value Objects. In such cases it’s worthwhile to go one level below Sociable Unit Tests and create a suite of Overlapping Unit Tests.

"Cloning streams in Node.js's fetch() implementation is harder than it looks. When you clone a request or response body, you're calling tee() - which splits a single stream into two branches that both need to be consumed. If one consumer reads faster than the other, data buffers unbounded in memory waiting for the slow branch. If you don't properly consume both branches, the underlying connection leaks. The coordination required between two readers sharing one source makes it easy to accidentally break the original request or exhaust connection pools. It's a simple API call with complex underlying mechanics that are difficult to get right." - Matteo Collina, Ph.D. - Platformatic Co-Founder & CTO, Node.js Technical Steering Committee Chair

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