I often come across Angular components that retrieve data from a remote API inside the ngOnInit lifecycle hook. While this is an easy way to load data into the component, it can can increase the size of the component and lead to duplication. A better approach is to use route…
Angular is a modern, highly performant application framework. Learning Angular is one of the best things you can do in your career as a web developer. But it is no good if your code does not work, which is where a good test suite comes into play. I have built…
Azure Application Insights is a cloud based application monitoring service from Microsoft. You can monitor your applications in all of your environments with Application Insights, including development and production. Microsoft has been shipping Visual Studio with built-in support for Application Insights in Windows. However, Visual Studio for Mac does not…
Visual Studio Code is an open-source, lightweight IDE from Microsoft. I enjoy using it on a day-to-day basis, generally for front-end projects like Angular web applications. VS Code has many handy features, one of my favourite is the rename symbols feature. The rename feature allows you to easily change the…
The default Angular project template executes end-to-end tests using the development environment. If you're like me and switch to a Mac from Windows quite frequently, you may want to have the ability to execute your e2e tests in a different configuration. We will enable executing Angular e2e tests in different…
Angular 8 is finally here! In this post we will look at what's new in Angular 8. Angular 8 is a major release for the entire Angular framework, Angular Material and the CLI. Ivy renderer to be available as an opt-in previewFaster startup time on modern browsersNew APIs to interact…
In this post, we will explore how to prevent caching get requests in Angular. This is an old issue that gets me every time I begin working on a new Angular project. Internet Explorer caches all GET requests, which means that a user won't see any changes after a database…
Loading spinners are an essential requirement for any Angular app to indicate the application is busy. This is often the case when an HTTP request is in progress. While it is possible to manually show and hide a loading spinner, we can avoid code duplication with a custom HttpInterceptor. In…
I recently had an interesting problem to solve around displaying TimeSpan values in Angular. Introduction My API happens to be written in .NET Core using C#, which returns a timespan representing a duration value. Our aim is to convert TimeSpan values to the display format 1d 1h 10m. As an…
In this post, I will show you how to programmatically set focus on a form control in Angular. Instead of the popular ElementRef solution, we will use Renderer2 to set focus on a form input. This approach is secure, easier to test and compatible with reactive forms. Here's a live…
With the Angular Material 7 release, an exciting feature we've been waiting for — drag and drop is available with the component dev kit. In my previous article, I explained how to create a reusable confirm dialog with Angular Material. Today, we’ll learn how to make the dialog draggable. We will…
In this post, you'll learn how to implement select all option for mat-select from Angular Material. Our solution will involve creating a custom component that will be embedded inside a select dropdown. It will also support indeterminate mode of checkbox, meaning our new option will show a different icon based…