przemwo

import React, { useReducer, useEffect } from 'react';


const reducer = (state, updatedProperty) => ({
  ...state,
  ...updatedProperty,
});

const initState = {
  name: 'John',

przemwo

import React, { useState, useCallback } from 'react';


export function App() {
  const [counter, setCounter] = useState(0);
  
  // const increment = (n) => {
  //   setCounter(c => c + n);
  // };
  const increment = useCallback((n) => {

przemwo

Function component with useEffect vs Class component

Do you work with React for some time and try to wrap your head around hooks? Here you can check what's the difference between Class component with lifecycle methods and Function component with useEffect.