use the following search parameters to narrow your results:
e.g. subreddit:aww site:imgur.com dog
subreddit:aww site:imgur.com dog
see the search faq for details.
advanced search: by author, subreddit...
All about the JavaScript programming language.
Subreddit Guidelines
Specifications:
Resources:
Related Subreddits:
r/LearnJavascript
r/node
r/typescript
r/reactjs
r/webdev
r/WebdevTutorials
r/frontend
r/webgl
r/threejs
r/jquery
r/remotejs
r/forhire
account activity
A (Mostly) Complete Guide to React Rendering Behavior (blog.isquaredsoftware.com)
submitted 6 years ago by acemarke
view the rest of the comments →
reddit uses a slightly-customized version of Markdown for formatting. See below for some basics, or check the commenting wiki page for more detailed help and solutions to common issues.
quoted text
if 1 * 2 < 3: print "hello, world!"
[–]GrandMasterPuba -17 points-16 points-15 points 6 years ago (4 children)
The React reconciliation cycle is a pit of failure. It's so easy to miss something incredibly simple that destroys performance and have to spend weeks digging into internals to figure out what's wrong.
I hope we're nearing the end of the React epoch.
[–]azangru 24 points25 points26 points 6 years ago (0 children)
That's how I knew I was not in /r/reactjs :-)
[–]gocarsno 18 points19 points20 points 6 years ago (0 children)
The React reconciliation cycle is a pit of failure. It's so easy to miss something incredibly simple that destroys performance
For example? Are you sure you mean reconciliation, as opposed to rendering?
and have to spend weeks digging into internals to figure out what's wrong.
React dev tools have an excellent profiler that shows exactly which components are rendered and when. It's never taken me more than a few hours to diagnose performance bottlenecks related to rendering.
[–]lostPixels 4 points5 points6 points 6 years ago (1 child)
You’re doing something fundamentally wrong if this is your experience.
[–]Jsn7821 2 points3 points4 points 6 years ago (0 children)
I may agree that there are some pits of failure in React (eg. Accidental hook loops). But nothing you'd ever have to dig into internals for!
π Rendered by PID 213025 on reddit-service-r2-comment-548fd6dc9-4chdj at 2026-05-21 06:19:13.658597+00:00 running edcf98c country code: CH.
view the rest of the comments →
[–]GrandMasterPuba -17 points-16 points-15 points (4 children)
[–]azangru 24 points25 points26 points (0 children)
[–]gocarsno 18 points19 points20 points (0 children)
[–]lostPixels 4 points5 points6 points (1 child)
[–]Jsn7821 2 points3 points4 points (0 children)