I’ve got a react native form with a button that should autofill some of the field based on some user’s information. The point is that even if I update the state variable related to a TextInput, the TextInput does not display such data. Here’s a short snippet for the sake of simplicity Follow…
Tag: reactjs
Issue with component array filter
I want to create multiple components and delete them by pressing on button click. I created the components. But i can’t delete it. I wanted to give unique id to the Card component. But when i click one of cards’ buttons,all of cards are gone. I displayed the component array like this: Answer From …
Typescript: How to type ForwardRefExoticComponent + ComponentType
I am trying to type a Component prop that could accept both: As well as something more custom: So, I tried: But when trying to set a ref, I get: Then I tried: But in this case, when trying to pass RN.TextInput as prop, I get: Here is a sandbox showing the issue Answer Adding typeof TextInput solve the TS
Why the useEffect hook does not work with state variable in context?
My code is here. I expect the content of the array testingData should be shown. However, it does not be shown. When I remove the useEffect hook, it works. Would you tell me why and how can I fix it? Answer In react, a component only renders if there are any state or prop changes. In your codebase rowList is
Trying to increment an integer in an Array
Good Evening, I am trying to increment an integer that I have index position of ‘0’ in my array, each time my function gets called. I have the variable added with .push, but then I just want to add one to that. I am trying to use indexof(), I have also tried findIndex(). Below is my code Answer Fo…
Redux createAsyncThunk vs useEffect hook
I’m familiar with react hooks, and i find it really easy to work with useEffect, thunk is very difficult to deal with, can i just use useEffect & axios and just dispatch the result to the store without using createAsyncThunk? is there any major performance benefit to use it over useEffect? createAsy…
Using Redux Hooks in a Formik onSubmit
i am currently trying to solve a homework for my university. We should integrate Action Creators and Reducers to our react project. The project is about having a Money Transaction Form with a List which shows all money transactions. Image of the Application We built the form with help of formik, my code looks…
How to properly use Modal in Fluent UI
I am new to React and Fluent UI, I loaded all my files from CDNs, when I tried execute the following code, the modal didn’t open. Please tell me what I am doing wrong here. I searched up examples but wasn’t able to find one. Here is the code: Thanks in advance Answer If you use isModalOpen = true/…
How to switch input radio button checked every 3 seconds?
I am trying to switch between input radio button checked every 3 second in Next.js, and it is switching from case0 to case1 and case1 to case2 but not case2 to case0. I have intermediate level of knowledge in React and Next.js. Answer As @Phil mentioned in his answer, you should wrap the setInterval logic ins…
Attempted import error: ‘formatDate’ is not exported from ‘src/utils’
I am trying to create a utils file in React where it uses a library, but the exported function is not visible to other files with the following compilation error: Attempted import error: ‘formatDate’ is not exported from ‘src/utils’. As soon as I remove the library, the code compiles a…