I use Link component for open pages without reload:
<Link href="/home"><a>Home</a></Link>
<Link href="/page"><a>Page</a></Link>
This in my home:
const loadedRef = useRef(false)
useEffect(() => {
if(!loadedRef.current){
console.log("run")
loadedRef.current = true;
}
}, []);
This work fine for first load.
If I click on page and click on home, useEffect run again!
I want only and only once load useEffect even click another pages and return to home
useRef creates a value for this specific instance of the home component. If the instance unmounts, then that value goes away. If you want to make a global variable that persists even after the component has unmounted, do something like this:
import React, { useEffect } from 'react';
// Deliberately making this *outside* the component
let loaded = false;
const Home = () => {
useEffect(() => {
loaded = true;
}, []);
// ...
}
export default Home;