All Questions

I am getting an error: Uncaught ResizeObserver loop completed with undelivered notifications. I have no stack trace for this error, and I am not using ResizeObserver in my ReactJS application. ...

I have the following code: import ReactDOM from 'react-dom/client'; import { useState, useEffect } from 'react'; const App = () => { useEffect(() => { console.log('Render'); }); const [...

I am building a chrome extension and using chrome.bookmarks api. When I do console.log(chrome.bookmarks) it logs undefined in normal development mode. When I load using load unpacked extensions, it ...

I use material ui components as part of a react project. After the code is loaded onto the browser, I see 3 classes applied to the <p> tag element that I am looking at. I also applied some ...

I am getting an error from New Relic but it collects the stack trace from the bundle. I have enabled the source maps and can see the source code in the Chrome when I do Ctrl-P in the Source tab. How ...

I have recently started working on a ReactJS webapp codebase that is bit out-dated and currently being tasked to modernize by upgrading to latest versions of dependencies and NodeJS 14 to LTS. The ...

I am sending cookie in response from node backend to my frontend after jwt signing. In the network tab on frontend , the set-cookie is visible and the cookie is been shown , but in the application tab ...

I'd like to debug a logic-related bug on a React website. The site is not responding as expected when the user clicks on a button. Is there an efficient way of finding where the onclick function is ...

I have added a breakpoint for lg devices such that the hamburger menu appears for screens smaller than lg. However, on chrome dev tools, when the width is 1024, the hamburger menu is already triggered....

I'm pretty sure I have a memory leak. When I perform certain actions (e.g. opening a menu) repeatedly, then use the 3 heap snapshots trick, there's always leaked memory. The retainers are different ...

I try to use React and got the warnging message when only click the button in the first time. And I ask chatGPT, it said all my codes are as expected. Should not have this warnings. // App.js import ...

Steps to reproduce: npx expo run:ios --device Choose any device or simulator Run app + JS debug Observe Chrome dev tools is extremely slow. What could the issue be? React native: 0.72.5 Expo: 49.0....

I am trying to improve runtime performance but I am having a hard nut to crack trying to understand the used/unused piece of code highlight tool in Chrome's dev tools. From what I understand, we ...

I have a component that can either be open or closed. Depending on this state an attribute is added to the component accordingly (e.g. data-state=open). The component applies some inline CSS using ...

I am learning react from namaste react course of akshay saini. I created 2 files. Index.html script.js Then i initiated npm init. After that i added parcel to it and then ran the npx parcel index.html ...