Our application has various select components that are frequently used throughout the application, such as “select user,” “select wallet,” and “select blockchain” components. One approach to managing these components would be to individually query the options and pass them to the select component each time they are needed; however, this…

Lazy loading is a technique used to improve the performance of web applications by only loading the necessary code and resources when needed. This can be especially useful in large and complex applications, as it can help reduce the initial load time and improve the overall user experience. Recently I…

A new static method named runInInjectionContext has been added to TestBed in Angular v15.1.0-next.0 to make testing inject() easier. The runInInjectionContext function works similarly to the runInContext function. Let’s say we have a function that uses the http module to fetch users: export function getUsers() { return inject(HttpClient).get<User[]>('users'); } We…

Many applications requires the ability to create and update records through the user interface. Usually, we’ll want to utilize the same dialog component for both operations. The term “upsert” is a combination of the words “update” and “insert,” and it refers to the fact that the dialog can be used…

In Angular v15, we can use the new directive composition API to apply directives directly to the host element of a component. Creating custom conditional structural directives at the moment involves a bit of boilerplate work. Let’s see how we can leverage it to create cleaner custom ngIf directives. Assume…

Sometimes we have to perform a certain operation repeatedly over time, with a set period of time between runs. The most common examples are when we need to poll a server to determine whether the operation succeeded or auto-refresh a stale screen with new data. The implementation of this functionality…

As part of the new standalone feature, Angular v15 introduces a new method to use the Http client API that doesn’t require using HttpClientModule: As with the Router API, the new API exposes a provideHttpClient function that takes the features we want to use. Using interceptors is now made…

Some forms require supporting one of multiple cases. For example, we can create a new task and assign it to a single user or a group of users. If users choose a single user, we want to show them a list of users; if they choose a group, we want…