New ask Hacker News story: Ask HN: Why doesn't a time travel debugger exist yet for JavaScript?

Ask HN: Why doesn't a time travel debugger exist yet for JavaScript?
61 by mavsman | 35 comments on Hacker News.
I know Microsoft had a project going for this that is almost certainly scrapped now because Chakra went the way of the dodo but between Facebook, Google, Microsoft, and Mozilla there is some pretty good backing behind JavaScript projects. I've never used TTD before personally but it seems like a game changer. Is this just a really hard feature to make or is it incredibly resource intensive? Is it actually not that helpful for developers? Am I missing something or is this just something that'll happen when it happens? It seems like you could make a pretty good integration with a browser that would make this valuable.

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