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Is it possible to globally catch exceptions thrown in an Angular 2 application to prevent the entire app from breaking from errors in any one component?
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The Global Exception Handler is a type of workflow designed to determine the project's behavior when encountering an execution error. Only one Global Exception Handler can be set per automation project.
Global Exception Handler - Exception Handling is a cross-cutting concern, it should be done for all the pointcuts in our application. We have already looked into Spring AOP and that's why Spring provides @ControllerAdvice annotation that we can use with any class to define our global exception handler.
An ExceptionFilterAttribute is used to collect unhandled exceptions. You can register it as a global filter, and it will function as a global exception handler. Another option is to use a custom middleware designed to do nothing but catch unhandled exceptions.
As google explain, you can override error handler service to do what you want. https://angular.io/docs/ts/latest/api/core/index/ErrorHandler-class.html
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