Collections/React Essentials

React Essentials

Must-know React patterns and hooks for everyday development.

React useEffect Cleanup Pattern

Properly clean up side effects in React hooks to prevent memory leaks.

import { useEffect, useRef } from "react";

export function useInterval(callback: () => void, delay: number | null) {
  const savedCallback = useRef(callback);

Claude Demo

TypeScript Debounce Hook

typescript

A custom React hook for debouncing values.

import { useEffect, useState } from "react";

export function useDebounce<T>(value: T, delay: number): T {
  const [debouncedValue, setDebouncedValue] = useState(value);

Demo User