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Strangely, the best documentation I've seen so far has been PHP. The only reason: because developers could comment right below the documentation. It's like having StackOverflow right there, in the documentation page.

(Note: I haven't touched PHP since 20 years or so, so not sure if it's still the case).

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It still is the case, and the documentation itself has improved greatly over time. PHP is one of the few programming languages that I feel can be used using only the official documentation (with the comments, of course)

Especially the warnings like this ISO date function is not actually ISO-compatible :D

But I did like the comments idea

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