I use react-error-boundary to use Error Boundary in Functional Component. When we execute this application, the content of the ErrorHandler component will produce a lovely error display. Any fault from the components below them in the tree is caught by the React error barrier.
After you've made the api call, the server (assuming you're also building the server) should check to see if the name and phone number are already in use. The server should return an error if they already exist. After your API call, capture the error in your react app and assign it to your error state variable.
Since React version 16, Error Boundaries have been accessible, it's generally recommended to utilise at least one Error Boundary at the root of your project (e.g., the App. js file). Users will no longer see a blank HTML page and will instead experience a pleasant fallback UI.
Very helpful course in learning ReactJS
Please update this course some topics are deprecated.
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