I have the following problem: I want to update a state when a scroll is happening.
I used the following solution:
React.useEffect(() => { window.addEventListener('scroll', scrollEvent) }, [])
My state is:
const [scrollAmount, setScrollAmount] = React.useState(0);
The event handler for my scroll event:
const scrollEvent = () => setScrollAmount(scrollAmount + 1);
The problem is my state doesn’t update. It’s quite understandable because I’m calling it just once without a re-render on the useEffect, but if I remove the []
of my useEffect, it will make it add even more scroll events, and I want just 1 scroll event that can update a state on window
.
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