import { useEffect } from 'react';
function MyComponent() {
useEffect(() => {
// Runs after EVERY rendering
});
}import { useEffect, useState } from 'react';
function MyComponent({ prop }) {
const [state, setState] = useState('');
useEffect(() => {
// Runs ONCE after initial rendering
// and after every rendering ONLY IF `prop` or `state` changes
}, [prop, state]);
}import { useEffect } from 'react';
function MyComponent() {
useEffect(() => {
// Runs ONCE after initial rendering
}, []);
}