So there I am, happily writing unit tests, and suddenly this appears I keep seeing this error while trying to write Angular tests. I… *think* this happens when something goes wrong during the constructor of a component. I’ve written before about how it could be due to an @Input property not being initialized properly. But, … [Read more…]
Suppose you have some data that comes from a web server somewhere. But, it doesn’t change – so we really only need to fetch it once, and then store the result for easy access (maybe its an Enum that you map to a list of key/value pairs). We can do this easily enough in a … [Read more…]
There are a bunch of different ways to do this, but sometimes I find myself wanting to run multiple web applications locally on different ports without fussing with configuration files, etc. And whenever I need to do this, I always have to look it up… but most of the posts out there are how to … [Read more…]
In a C# console application, you can change the color of the text emitted by Console.WriteLine by setting Console.ForegroundColor and Console.BackgroundColor. It’s pretty straightforward, but if you want to make the output have different colors to denote different things, its kind of cumbersome to have to set the color and then write the output, and … [Read more…]
This one’s kind of specific, but sometimes when you’re writing a console app that does a lot of asynchronous stuff, and you want to cancel it at any time by pressing escape. via GIPHY However, Console.ReadKey is blocking… so that’s not super great. CancellationToken First, make use of the cancellation tokens. I’ve talked about them … [Read more…]
Are you tired of feeling like your code is meaningless? Sick of people not referring to your code as “black magic,” or struggling to gain recognition from your boss for writing sufficiently obfuscated code?If you’ve answered “yes” to any of the above, Reflection might be for you! via GIPHY Reflection I’ve talked about reflection a … [Read more…]
Sometimes I find myself wanting a quick way to compare an enum with a list of other enums… Basically, if the enum is one of these, then do this. It’s pretty easy to do with Linq, but if you want to do it a few times in a few other places, it pays to be … [Read more…]
In the last blog post I showed how you could extend NgbModal to make a Modal Service, letting you re-use modal dialogs easily from within your Angular components. Even though its not always that much fun, I like to try and keep testability in mind when writing code… and, I’ll admit it, sometimes I gloss … [Read more…]
I like the idea of modal dialogs for certain things, especially showing error messages or confirming an action. Creating (and styling) modal dialogs can vary so much that Angular doesn’t include them out of the box. There’s a bunch of libraries out there that give you this functionality, including ones that are tied to a … [Read more…]
TCP is a good choice for communication if you want to know that your message got to where it was going, as opposed to UDP where the communication is fire-and-forget. When a message is sent, the recipient sends an acknowledgement that the message arrived successfully. If you don’t get an acknowledgement, you have a pretty … [Read more…]