In a nested hook: how could one know if it already was invoked in the current component (instance) and access any previously computed/saved values? Preferably without the Component author/the hook user having to know about this and not having to do anything special for it to work. Example An example to illustrate the problem: Imagined solution Something like a “named”
Tag: react-hooks
How can I obtain an image link that is in the body of my GET request using React.js?
I am using a spring boot backend with a react.js frontend for a web application. Once a user is logged in, it directs the user to their Profile where they will have their username, profile picture, and a banner displayed on the screen. I have developed a backend service that returns the necessary information in the body of my GET
Replicate element in React
Hello thanks for the help, with the following code in react I want to replicate the click button every time I click on it. Currently nothing happens, but if the console shows that the array grows. Here the sandbox: https://codesandbox.io/s/charming-glitter-0ntxmj?file=/src/App.js Answer Updating a local variable in a function component doesn’t work that way. It behaves just like a normal function,
How to handle concurrent update of multiple states in React Hooks?
In the code below, I’ve handled the concurrent change of multiple state variables by using a unique global “State”, but I don’t think it is the best way to do so. Can anybody suggest me how to change multiple states without keeping them together as I did? Here’s the working code with the “complex state” Answer useMemo, please The biggest
ReactJs json map returning undefined after loading
So I’m fetching an API call which I’m then trying to iterate over in order to display as a list. My code so far is: And in fact, the json loads, a sample call is: But I never get the iterating ul elements. I think this is somehow related to how I’m running my useEffect, because in logs I get
Cant Update my state using setstate for paypal paiment
So my problem is that i update my state but when i try to use it to approuve my payment the OrderUrl is empty i undestard that setState is asynchrone but how can i avoid this case and update my state immediately. i have this problem like in two or three page in my website, and i already did some
I want to paginate data. It is working fine but when I search for specific data it always shows in the first page
What I want is to paginate my data but the problem is when I’m searching for specific data if I’m on page 3 the result shows on page 1 always and I can’t see anything because I was on page no 3. I want to go to page 1 automatically when I’m searching for something. Also when I press the
react – not able to update state in input value
I am learning react and I want to create a simple form where the input value changes and updates once the user types it in. I have this code where the input value updates the state when it is being typed, but when I press enter, the old state returns. I did lots of googling but can’t seem to make
Unable to set state after getting document data from Firestore
I am trying to do a User Profile page and after getting the data from Firestore, I’m unable to set the data into the userProfile state. I got this error: The console log shows that the userProfile state is undefined, however, I can retrieve the data from Firestore without any issues as shown in the console log. Answer Instead of
date in moment.js does not change when submit new transaction still save last date until refresh server
I am using moment.js to format date and save it in DB Schema code front code but when I submit a transaction the date is not updated for real-time I send it I must refresh the server to update the date Answer When using moment().toDate() as the default, the default value is set to the date and time when you