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I think you mean it logged log messages twice? I don’t believe having devtools opens changes the runtime semantics of the app.that would defeat the point of th

I think you mean it logged log messages twice? I don’t believe having devtools opens changes the runtime semantics of the app.that would defeat the point of the devtools. I do know it annoyingly logs things twice

jitl 5y ago
It doesn't log things twice, because DevTools replaces `console.log` and similar with no-op versions when they re-play the render. But it does call your component more times than you expect to power the DevTools hook inspector and other features. Here's the code that turns off `console.log`: https://github.com/facebook/react/blob/b8cfda15e1232554487c7285fb464f22705a23ce/packages/shared/ConsolePatchingDev.js#L10-L13 https://github.com/facebook/react/blob/b8cfda15e1232554487c7...
- joshribakoff 5y ago
  I haven’t seen anything about devtools altering runtime semantics but I may be wrong, that is something I think I disagree with because of the possibility to have bugs that go away when trying to debug