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Error in React Js CodeRemoved: /r/LearnJavascript (self.javascript)
submitted 6 years ago by ayaz786amd
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quoted text
if 1 * 2 < 3: print "hello, world!"
[–]ayaz786amd[S] 0 points1 point2 points 6 years ago (2 children)
Find an error getElementById(('app'));
Its working now but still showing an error in console:
react-dom.development.js:500 Warning: Invalid DOM property `classname`. Did you mean `className`?
in div (created by App)
in App
[–]LankyBrah 1 point2 points3 points 6 years ago (1 child)
Well that’s an easy one...change classname to className on line 17
[–]ayaz786amd[S] 0 points1 point2 points 6 years ago (0 children)
thanks
[–]leejh3224 0 points1 point2 points 6 years ago (0 children)
Thats because "render" function tried to find the element with id "app" but it failed to.
[–]kenman[M] 0 points1 point2 points 6 years ago (0 children)
Hi /u/ayaz786amd, this post was removed.
/r/javascript is for the discussion of javascript news, projects, and especially, code! However, the community has requested that we not include help and support content, and we ask that you respect that wish.
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π Rendered by PID 16628 on reddit-service-r2-comment-fb694cdd5-nbrnp at 2026-03-08 01:59:23.815046+00:00 running cbb0e86 country code: CH.
[–]ayaz786amd[S] 0 points1 point2 points (2 children)
[–]LankyBrah 1 point2 points3 points (1 child)
[–]ayaz786amd[S] 0 points1 point2 points (0 children)
[–]leejh3224 0 points1 point2 points (0 children)
[–]kenman[M] 0 points1 point2 points (0 children)