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A comment on The Productivity Blocker. Parent comment

Re:The Productivity Blocker by auggierose on Monday December 19, 2022 @03:51AM (#34049938)
> The greatest trick that javascript ever pulled was to convince the latest generation of programmers that it was fast...

By the way, JavaScript IS quite fast. I ported some code from Swift to Typescript recently, and its runtime went down from 15 seconds to 2 seconds. It wasn't a 1-1 port because I improved things, so it is not a fair comparison, but I was very positively surprised.

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Re:The Productivity Blocker by mattmanser on Monday December 19, 2022 @05:48AM (#34050670)
> It wasn't a 1-1 port because I improved things

Hmm, I think we found the reason....

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Re:The Productivity Blocker by auggierose on Tuesday December 20, 2022 @04:29AM (#34063619)
I don't think you did! Doing the same improvements in Swift I wouldn't expect an over seven time speedup. I suspect that the time difference has to do with data structures like hashmaps, which in Swift are defacto immutable, and in JavaScript are not.
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