Synchronizing with Effects – React
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2026-07-28 09:45:18
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Text Highlight2026-07-28 13:06:18
Original Highlight Excerpt
"Every time your component renders, React will update the screen and then run the code inside useEffect."
Whisper Note
Unless you pass deps, right? Then it only runs when those change, not every render.
Text Highlight2026-07-28 12:57:18
Original Highlight Excerpt
"Every time your component renders, React will update the screen and then run the code inside useEffect."
Whisper Note
So the effect always runs after paint, not before? That's good to know for layout stuff.
Text Highlight2026-07-28 10:03:18
Original Highlight Excerpt
"Effects let you specify side effects that are caused by rendering itself, rather than by a particular event."
Whisper Note
I remember debugging a chat app where I put the connection in an event—big mistake.
Text Highlight2026-07-28 09:54:18
Original Highlight Excerpt
"Effects let you specify side effects that are caused by rendering itself, rather than by a particular event."
Whisper Note
Hmm, but doesn't that mean effects run on every render? Seems wasteful.
Text Highlight2026-07-28 09:45:18
Original Highlight Excerpt
"Effects let you specify side effects that are caused by rendering itself, rather than by a particular event."
Whisper Note
This finally makes the event vs effect distinction click for me.
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