Ask HN: What are some cool but obscure data structures you know about?

Re:Ask HN: What are some cool but obscure data structures yo... by feoren on Friday July 22, 2022 @03:42PM (#32196275)

- if the language eagerly binds on determined promises (ie it doesn’t schedule your .then function) you can get weird semantic bugs.

What would be an example of this? If the promise has been determined, why not just immediately run the .then function?

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Re:Ask HN: What are some cool but obscure data structures yo... by afiori on Friday July 22, 2022 @09:00PM (#32199102)

The reason not to do it is to limit the non-determinism of the order of execution.

In Javascript

    f1();
    p.then(f3);
    f2();

functions are always called in the relative order f1, f2, f3 and never f1, f3 , f2 even if p had already resolved.

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