I am trying to add a serviceworker to an existing React app with this filesystem layout: Filesystem Basically a bit of initialization code is stored in the public folder, and all code of importance is in the src folder. In the serviceWorker.js file, I made an array of filenames to cache and call that array in…
Tag: reactjs
How do I add an list element seperately to 2 lists?
I am pretty new to react. So I have one parent component which has two child components. These 2 children are the lists that should be displayed. So far I figured out how to transfer the data between two lists by checking the status property of the data. I am not able to understand how to add data into the
Temporary disable Next.js pages on build
There are SSR-related problems with several pages in Next.js project that results in errors on npm run build and prevent the project from being built: For example, bar: As a quick fix, it may be convenient to just not build bar/*.* pages and make routes unavailable. Can pages be ignored on Next.js build witho…
CORS problem – Access to fetch at *** from origin *** has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ – PUT request to Firebase
I have CORS problem, I am sending an put request for updating data – posts into Firebase with React: I have this notification error in console With post request – to add new posts everything is working fine. Has someone solution for this problem? Answer If you access your database over HTTPS, you …
How to dynamically update the components in ReactJS
I am new to React and I don’t know how to overcome the below situation. Let say I have to display a table.In Table <td> i have one dropdown which I got from my child component.And also have some <div> next to the dropdown. So,for each dropdown change, i have to bind some html into that <d…
Next.js PDFtron Webviewer – ReferenceError: window is not defined
I’m trying to create a PDF viewer on my nextjs static page but i dont know how! hope you guys can help me solving this error or showing one other way to do this. (I’m new to Next.js) I was following this working example here index.js viewer.js Answer WebViewer needs the window object to work. In n…
How can I remove the last comma from a map?
I have, How can I remove the last comma in banana, apple, orange, the result of the code, that is, the one after orange and make it look something like this: banana, apple, orange? Thank you very much! Answer
Async Storage in React Native showing only first time saved data
I am trying to save data into async storage every time when data in redux store changes, But I am getting an error when I am trying to update user’s Name and saving it then I am able to see the changes when Application is open but when I close the application and open it again then it is showing
Using .bind() in functional React component, is it recommended?
I saw this syntax below during our code review, it’s my first time seeing it, I couldn’t find any article online of it being used/recommended – usually I would opt for arrow function or useCallback in this use case. Just curious if anyone else here used this, and if yes, would you be able to…
How to filter cars by key-value
I implement car auction, and I have a car items list inside the catalog component. I have buttons that specify the type of car (suv, bike, passenger..) when I click on any of the buttons, I want to redirect to catalog with a filtered list of cars with according typeCar. So data with objects is in App.js I hav…