Hello world is a placeholder component just for trying things out. It doesn't do anything useful. Sure is cute though!

Check it out
this.is.code(x);
println('done');
✓
Good Example
<h1 class="primary">
<span>Hello HTML</span>
</h1>
On Target
More details
You can use footnotes. This is possible too!
Where next?
Further reading, elsewhere on the Web