Clicking Tired button only work for one time in Lecture 13 Part 1 Video for useEffect hook | JavaScript, Node.js, React.js and Angular.js Forum

Monal Posted on 10/09/2021

Hello Instructor

I have notice on both Chrome and Firefox browser that Clicking "Tired" button only work for one time in Lecture 13 Part 1 Video for useEffect hook

Here is my App.js Code as per your video:

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

import './App.css';

function App(props) {

// primary emotion

const [ emotion, setEmotion ] = useState("Happy");

// secondary emotion

const [ secondary, setSecondary ] = useState("Tired");

// let use the event via useEffect

useEffect(() => {

console.log(`It is ${emotion} emotion of the end user`);

}, [emotion]);

// let use the event via useEffect secondary emotion

useEffect(() => {

console.log(`Secondary emotion is ${secondary} of the end user`);

}, [secondary]);

return (

<h1>Current Emotion is {emotion}</h1>

<buttononClick = {() =>setEmotion("Happy")}>

Happy

</button>

<buttononClick = {() =>setEmotion("Frustrated")}>

Frustrated

</button>

<buttononClick = {() =>setEmotion("Enthusiatic")}>

Enthuse

</button>

<buttononClick = {() =>setSecondary("tried")}>

Tired

</button>

</>

);

}

export default App;

Here is my index.js code as pre your video:

import React from 'react';

import ReactDOM from 'react-dom';

import './index.css';

import App from './App';

ReactDOM.render(

<App/>

</>,

document.getElementById('root')

);

I have attached a screen shot in which clicking on Tired button works only 1 time the other button works fine, Also note when changing "setSecondary" function back to "setEmotion" button makes the Tired button works everytime which is weired

Please explain why is that happening and how to resolve this issue ?

Monal Replied on 10/09/2021

changing "setSecondary" function back to "setEmotion" button makes the Tired button works everytime