JAVASCRIPT

react hook example

// Hooks let you build stateful and dynamic components

import React, { useState } from 'react';
function Example() {
  // Declare a new state variable, which we'll call "count"  const [count, setCount] = useState(0);
  return (
    <div>
      <p>You clicked {count} times</p>
      <button onClick={() => setCount(count + 1)}>
        Click me
      </button>
    </div>
  );
}

Example React Hook

const useCounter = (initialState = 0) => {
      const [count, setCount] = useState(initialState);
      const add = () => setCount(count + 1);
      const subtract = () => setCount(count - 1);
      return { count, add, subtract };
};