00:00 Let's look at the TypeScript first way first. The TypeScript first way basically introduces a new keyword into TypeScript or into JavaScript to describe these attributes. And we can say private X and private Y. These aren't people in the army.

00:18 This is describing whether this is a public property or a private property. If I wanted this to be public, I could just say public Y and public is the default too. So we get private X and private Y. And now when we try to access them from the outside, you can see that it is private and can only be accessible within class CanvasNode.

00:39 That's pretty cool. But this is like a TypeScript only thing. This means if we ever need to refactor our code to JavaScript, like it would be great if this worked at runtime. It turns out there is a language feature we can use for this too, which is to add a and what is this a hash? God, I lost my brain for a second there.

00:58 A hash in front of X and Y. And now this means that you, without needing to add any separate annotations, by just using this hash inside a class, you can see that we get this dot hash X equals position this. And it means now that we can't access, we can't access X on this, of course,

01:17 but we also can't access hash X either. So property hash X is not accessible outside class CanvasNode because it has a private identifier. So that hash is a private identifier. Super nice. So I would always recommend choosing the JavaScript first way of doing things.

01:36 And so this, I think, is the correct solution for us, meaning that we can actually just use a JavaScript like built in syntax, which is like part of how browsers and how the language works, essentially, and not relying on a TypeScript only syntax for this.