Dependency injection in Angular

Understanding dependency injectionTwo main roles exist in the DI system: dependency consumer and dependency provider.Angular facilitates the interaction between dependency consumers and dependency providers using an abstraction called Injector.When a dependency is requested, the injector checks its...

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Trackby in ngFor Angular

  Angular Trackby option improves the Performance of the ngFor if the collection has a large no of items and keeps changing. This can significantly reduce the number of DOM manipulations required, especially in large lists.Here's a brief overview of how to use trackBy:SyntaxYou can use trackBy by providing a function that returns a unique identifier for each item in the list. This function is...

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EF Core Migrations

What is EF Core MigrationsIn EF core we create or update data models in our code. We call this approach the Code First approach. As our app grows, we are going to make a lot of changes to our model. This will result in our database going out of sync with the model.Hence we need to update the database...

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@Self, @SkipSelf & @Optional Decorators Angular

@Self, @SkipSelf and @Optional are Angular Decorators that configure how the DI Framework should resolve the dependencies. These decorators are called Resolution Modifiers because they modify the behavior of injectors. In this page, we will learn @Self, @SkipSelf, & @Optional.  How Angular...

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