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useRef, useEffect, useState

Imran Khan answered on November 1, 2021 Popularity 7/10 Helpfulness 1/10

answer useRef, useEffect, useState

related React useEffect, useState

useRef, useEffect, useState

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import React, { useState, useRef, useEffect } from 'react';

function MyComponent() {
  const [count, setCount] = useState(0);
  const prevCountRef = useRef();

  useEffect(() => {
    prevCountRef.current = count;
  });

  const handleButtonClick = () => {
    setCount(count + 1);
  };

  return (
    <div>
      <p>Current Count: {count}</p>
      <p>Previous Count: {prevCountRef.current}</p>
      <button onClick={handleButtonClick}>Increment</button>
    </div>
  );
}

Popularity 7/10 Helpfulness 1/10 Language javascript

Source: chat.openai.com

Tags: javascript use-state

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Contributed on Jun 20 2023

Imran Khan

0 Answers Avg Quality 2/10

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React useEffect, useState

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function useFriendStatus(friendID) {
  const [isOnline, setIsOnline] = useState(null);

  // ...

  return isOnline;
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Nov 01 2021

Crowded Cormorant

0 Answers Avg Quality 2/10

useRef, useEffect, useState

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useRef, useEffect, useState

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