Sometimes, especially when you’re debugging or planning out your component layouts, it can be useful to just write out the entire object as JSON so you can see just what you’re dealing with. You can do this in Chrome’s console usually with good results, but sometimes it would be easier to see it in the … [Read more…]
Recently my team upgraded to .NET Core 2.2. We have an API that needs to be accessed from an Angular project living in a different domain, so we had CORS enabled this way: Disclaimer: this is an intranet application – so it is only accessible inside of a corporate firewall, making it more acceptable to … [Read more…]
You’ve used it, you know it. Given a series of numbers, it returns you the biggest one. Simple. Easy. Definitely not blog post worthy. Syntax Math.max([value1[, value2[, …]]]) Usage Thank You That’s it for this week’s blog post, have a good day everyone…! via GIPHY Spooky Stuff Oh… You’re still here? Huh? What happens if … [Read more…]
In a previous post I talked about how to use Observable.throw to simulate an Observable error in a unit test. However, in RxJS 6, the syntax changed a bit. I also talked about this a bit in this post about using of to create Observables on the fly for testing in RxJS 6, but I … [Read more…]
HttpClient is the preferred way to make http calls from an Angular app. It is simple and straightforward to use, returning an Observable<T>. All you have to do is subscribe and the callback will be invoked when the data comes back from the server. via GIPHY But what about error handling? In a perfect world, … [Read more…]
There’s several tutorials for how to use and test HttpClient, but I wanted to distill it down to a simple snippet that I can refer back to when I inevitably forget how to do it. via GIPHY HttpTestingController This handy thing is provided by importing the HttpClientTestingModule in to your TestBed. It lets you manipulate … [Read more…]
angular-cli is great because it basically does a ton of boilerplate stuff for you. When you want to create a new project, you just tell angular-cli to make you one and BOOM – you’re good to start programming. Its one of the reasons that I think I still prefer Angular over React or Vue or … [Read more…]
A TcpListener opens a socket using TCP to listen for incoming connection requests. You can use AcceptTcpClientAsync to asynchronously get a TcpClient object, which you can then use to send and receive messages on the connection. AcceptTcpClientAsync Waits forever to get a connection. This is pretty much what you want most of the time… after … [Read more…]
In C# asynchronous programming, a CancellationToken allows you to stop a Task. This is especially useful if you have many Tasks running and want to gracefully shut down the program, or if you want to add a timeout to a Task. via GIPHY Creation CancellationTokens are created from a CancellationTokenSource. via GIPHY Usage The token … [Read more…]
For some reason I’ve procrastinated looking in to transition animations in Angular. via GIPHY Transitions are visually pleasing, and it can give your application a nice feel that makes your users think “Wow, this is a nice site.” Subtle animations are the best – the ones you don’t really notice unless you’re looking for them. … [Read more…]