Enhance

While changing existing API is impractical, there are often cases where you want to add functionality. Take the following as an example:

function root(num) => num ** 0.5;

var root9 = root(9);

println(root9);

This would look better if root was a method on num types instead; this can be done by "enhancing" num:

enhance num {

function root() => this ** 0.5;

}

We can now call root on num types directly:

var root9 = 9.root();

println(root9);

Syntax

enhance type {

definition...

}