C++ 11, Example of auto for function declaration

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template <class T>
auto add(T t, U u) -> decltype(t + u)

is equal to

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template <class T>
decltype((*(T*)0) + (*(U*)0)) add(T t, U u);

Java - JFR create a new configuration from existing one

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Creating a new custom(custom.jfc) JFR configuration from the existing profile.jfc

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Nice example how Javascript can have a unit test with fetch call by mocking.

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Signal will be standard in JavaScript?

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LangChain JS example with Llama cpp for embeddings and prompt.