How to do tasks before an Angular app is ready

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Angular's APP_INITIALIZER is an injection token used to execute functions before an Angular app initializes, ensuring configurations and services are ready before user interaction. It is essential for tasks like loading configurations, initializing services, and prefetching data. Practical use cases include loading settings from a server, initializing third-party services, and configuring routes based on user roles. Proper setup involves configuring initializer functions in the Angular application configuration to handle critical setup tasks effectively.

Practical Use Cases for Angular's APP_INITIALIZER

<p>I really wish they had a <code>MODULE_INITIALIZER</code>!</p>


<p>I remember using it to initialize the translation service for our application…works like a charm</p>
