What is the best method to access and raise a custom error across all components in Angular?

Incorporating a custom error into Angular is a task I am looking to achieve. My goal is to create a personalized error that can be easily thrown in any part of Angular, whether it be a service, controller, or elsewhere. I don't want to have to go through the hassle of 'dependency injecting' the CustomError every time.

function CustomError(message) {
   Error.captureStackTrace(this);
   this.message = message;
   this.name = "SomeCustomError";
}
CustomError.prototype = Object.create(Error.prototype);

One approach I am considering is simply throwing the custom error like this:

throw CustomError('some message');

Alternatively, I could also do it this way:

throw {name : "CustomError", message : "some message"};

What are your thoughts on this?

Answer №1

Within my app.js bootstrap file, I have implemented the following code:

angular.module('myApp')
    .run(['$window',
        function($window) {

            function UniqueErrorMessage(message) {
                Error.captureStackTrace(this);
                this.message = message;
                this.name = "UniqueCustomError";
            }
            UniqueErrorMessage.prototype = Object.create(Error.prototype);

            $window.UniqueErrorMessage = UniqueErrorMessage;
            // This now allows me to throw the custom error anywhere in the application:
            // throw new UniqueErrorMessage("Oops!");
        }
    ]);

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