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Tag Archive for javascriptreactjsreact-hooks

useState not re-rendering the count

I have initialized a state that is an object, and when I update it, my component does not re-render.
https://github.com/Shashikant-Redekar/Sukoon-Sagar/blob/754ec742c82f34e1e13338559662b287a0f1fb86/src/MenuList/SouthIndianSnacks.js#L122

ReactJS – Component doesn’t update when useState is changed

My father component FatherComponent holds a useState called objectList that contains a list of objects. testComponents is iterated over to generate a list of child components called ChildComponent. FatherComponent contains a button (addComponent) *that adds an object to objectList when clicked, therefore creating a new ChildComponent. Each ChildComponent holds a ‘removeComponent‘ button that allows the current component to be deleted. This button works correctly in updating the objectList but it doesn’t trigger a re-render of the father component. Only the addComponent button does. Here’s my code:

I’m trying to connect to a WebSocket in React. I am using the useEffect hook, but I keep getting an error when I click the connect button to connect

When I click the connect button on my webpage, I get an error that I am using useEffect wrong. I have never used React before and neither has my company. My boss is worried about multiple of the same ports being produced and that is why we want to use useEffect, so we can hopefully prevent that problem and keep the connection until it is disconnected. Here is my code. Is the problem using useEffect on a click? What can I do to ensure my connection will stay and there will not be duplicate ports being made at once?
url is hardcoded previously to be the url we need.

How to Properly Load External Scripts in a React Application?

I’m trying to include external script files in my React project to use them in various parts of my code. I’ve created a ScriptLoader component to handle the loading of these script files, but I’m encountering an “Unexpected token ‘<‘” error.

Using useEffect in React to Promote Component Reusability

The React documentation describes how to conveniently and effectively manage state changes in your components by passing handlers through props. This helps avoid overengineering and promotes component reusability. However, this often leads to increased complexity in the root component.