Reactjs – Cleaning up state on useEffect hook
Can someone give me a light on what may be happening here? I have an effect that basically, when I load a product page it updates an state with an array of items, but when I change the product (a…
Can someone give me a light on what may be happening here? I have an effect that basically, when I load a product page it updates an state with an array of items, but when I change the product (a…
this is my first time trying a custom AsyncStorage Hook for a project, but I keep getting this LOG Error: Error: [AsyncStorage] Passing null/undefined as value is not supported. If you want to remove value, Use .removeItem method instead. Passed…
so basically I build a todo list app, using mern stack and whenever I am adding todo it gives me todo.map error. I have a context from there it is importing some function to fetch! Whenever someone adds a todo…
I have 2 API calls on a page, and I need to trigger an event on useEffect, only if information from both APIs are exist. transaction object from the first API. paymentData from second API useEffect(() => { if (transaction?.transId…
I have a custom dropdown that is triggered by a button. If it is expanded, then isExpanded===true. To close it, I use useEffect, which adds a click handler to the entire document only if isExpanded is true. The problem: the…
I have a problem related to AfterVoteProgress component. After I import the Pool and vote for an Option, i render the afterVoteProgress that it's a progress bar and some text. I've encoutered a problem when the pool's options are all…
In a component, I use useLayoutEffect() to load data from the backend and put it in state/context. Then MyTable is loading the data from context to render. This hook should fire before the browser has had a chance to paint.…
I have created a favourite list with LocalStorage, but it adds one item at a time each time I reload the page. The elements are taken from a JSON Here is an example of how my code works: https://www.codesandbox.io/s/intelligent-wood-d9y4zw?file=/src/App.js const…
I'm creating a simple text editor with features like predictive texting, autocorrection etc. I'm trying to change the format of parts of the user's input that are within quotations but for some reason the react component keeps showing [object Object]…
I have a reducer for a state. When the reducer's dispatch is called, I need to get the newly created item. Alternatively I need a callback for the dispatch, so I can perform further actions AFTER the dispatch has completed.…