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import { useEffect, useState } from "react"
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import Link from "next/link"
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export default function BackToTop() {
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const [hasScrolled, setHasScrolled] = useState("false")
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useEffect(() => {
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window.addEventListener("scroll", onScroll)
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return () => {
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window.removeEventListener("scroll", onScroll)
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}
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})
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const onScroll = () => {
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if (window.scrollY > 100 && !hasScrolled) {
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setHasScrolled(true)
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} else if (window.scrollY < 100 && hasScrolled) {
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setHasScrolled(false)
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}
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}
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return (
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<>
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{hasScrolled && (
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<Link className="scroll__top scroll-to-target open" href="#top" style={{ position: 'fixed', zIndex: 2147483647 }}>
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<i className="fas fa-angle-up"></i>
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</Link>
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)}
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</>
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)
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}
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