Ideas Into Software

Let's say we all love ice cream. So we define the following enum in TypeScript:
And now we want a switch that returns an answer to your friend's question "How does your ice cream taste?". Like so:
Now, it sure would be nice if TypeScript could hand-hold us a little and verify that we've covered all the possible values of the IceCreamTaste enum, right? Otherwise if I add, say, a new chocolate taste (which is obviously above awesome), I would have...

Just a quick writeup on a simple but perhaps not an entirely obvious feature of TypeScript.
TypeScript modules are written in one of two modes: declaration mode or augmentation mode. The difference is that in declaration mode, you can declare new top-level declarations - wow, that's a mouthful - but you can't update existing ones whereas in...

Typescript 2 introduced a number of useful mapped types such as Pick or Partial. However sometimes the predefined ones just don't cut it. Here's two new types you can use to make your life easier.
Omit
Pick is handy when you need to create a new type from an existing interface with only the specified keys. Which is great but sometimes you need just the opposite. Like when you're defining the return type for your API endpoint where you want to include...