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by runspired 3795 days ago
A lot of it is, but I spend so much time teaching people how to CPU Profile, take heap snapshots, diagnose leaks..

Things that ought to be fundamental, but which were left unlearned while the web was allowed to be lazy. With static pages, GC concerns weren't very large, because soon enough the user is going to click ahead to a new page and wipe the slate anyway.
2 comments
sotojuan 3795 days ago
I'm coming up on a year of knowing JS and none of the recommended beginner resources or books ever mention performance or profiling. It seems to just not be taught. On /r/javascript and other forums I do not see it mentioned often as it's assumed the library or framework takes care of it.

I'll take the opportunity now and ask for good resources on JS performance, garbage collection, and profiling. I realize I know the syntax and semantics well (and a framework or two), but not enough about optimization and related stuff (like ServiceWorker).

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runspired 3795 days ago
This is the place to start: https://developer.chrome.com/devtools/docs/javascript-memory...
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Terr_ 3795 days ago
The problem is partly education, but partly that many companies won't pay for "good"... not compared to "delivered quick", "cheap cost", or "bullet-pointable features".

"Profiling? What are you messing around with those random toys for? We need to make the buttons rounded!"

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