IonicErrorHandler

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The IonicErrorHandler intercepts the default Console error handling and displays runtime errors as an overlay when using Ionic's Dev Build Server.

IonicErrorHandler Example

import { NgModule, ErrorHandler } from '@angular/core';
import { IonicErrorHandler } from 'ionic-angular';

@NgModule({
  providers: [{ provide: ErrorHandler, useClass: IonicErrorHandler }]
})
class AppModule {}

Custom Error Handlers

Custom error handlers can be built to replace the default, or extend Ionic's error handler.

class MyErrorHandler implements ErrorHandler {
  handleError(err: any): void {
    // do something with the error
  }
}

@NgModule({
  providers: [{ provide: ErrorHandler, useClass: MyErrorHandler }]
})
class AppModule {}

More information about Angular's ErrorHandler.