Likely just that the fastest implementations in the benchmarks game are using those features and so aren't really a good reflection of the language as it is normally used. This is a problem for any language on the list, really; the fastest implementations are probably not going to reflect idiomatic coding practices.

Here are naive un-optimised single-thread programs transliterated line-by-line literal style into different programming languages from the same original.

https://benchmarksgame-team.pages.debian.net/benchmarksgame/...

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