Code Explainers

Code explainers tagged #callback-ref

import { useState, useRef, useCallback, useLayoutEffect } from "react";
 
export function useResizeObserver({ debounce = 0 } = {}) {
  const [size, setSize] = useState({ width: 0, height: 0 });

A resize-observing hook in React

custom-hook resizeobserver callback-ref

Advanced 8 steps

javascript

import { useCallback, useEffect, useRef, useState } from 'react';
 
export function useInfiniteScroll(fetchPage) {
  const [items, setItems] = useState([]);

Building an infinite scroll hook in React

custom-hooks intersection-observer pagination

Advanced 6 steps