In the entire framework, we only have one function. the Koala()
function.
Koala()
has a single source of truth: data
, an object hidden in Koala that stores all the variables and data you need to use in your app.
Koala()
also contains all the methods you need to develop super speedy, super slick apps.
The methods:
template
update
render
root
debug
Koala uses the wonderful htm
from Preact for rendering HTML.
The template method takes all the HTML in a single literal string, so it can be rendered to the web page. See the examples below for more details.
The update
method is how we deal with changing data throughout the program. Whenever you need the values of data to change, you use the update()
method to map the old data
object to the new, updated data
object.
After any update, the page is automatically rerendered so we can see the effect of the changes immediately.
Whilst throughout the rest of the program, the page will be rendered automatically, we need to declare an initial render with an inital data.
render()
takes an object as a parameters, which fills the hidden data
object in the Koala function, and sets .
By default, Koala will render all your HTML to document.body
. However, this isn't necessarily suitable for all programs.
Therefore, if your program requires a different root element to render all HTML to, provide your root as a parameter to the root()
method and this will change the default value (which is hidden away in Koala).
Any excellent developer will have some crazy bugs to deal with, therefore Koala has an inbuilt method debug
that, when called, will log all the properties and their values of the data
object to the console.