Instructor: Every hyperapp requires two methods. An H-method to build virtual DOM nodes, and an app method to render our app. Let's start by looking at the app method.
The app method takes four arguments, our current state, and actions object to update our state, a view function to view render to the DOM, and an entry DOM node. In this case, we'll make a document.body.
Using our H-method, the first argument is the DOM tag that we want to use. The second one would be properties on that DOM tag. Lastly, what we want rendered inside of that tag or any children. In this case, let's state.title be rendered inside.
If we save this, and we refresh the page, we should see, Hello world.