Shape Library

Predefined Shapes

We provide some common shapes that can be accessed by :${name}.

Showcasing the UUID Shape

Kt.compare(
    value: "123e4567-e89b-12d3-a456-426614174000",
    shape: :$uuid
).match? # => true

info

The :$ prefix is inspired by Ruby's $ usage for global variables.

Think of it as a global variable for shapes, but without the ick of actual global variables.

Custom Shapes

You can also add your own shapes to fit your needs.

Kt.add_shape(:$even, ->(v) { v.even? })
Kt.compare(value: 4, shape: :$even).match? # => true

The full list of included shapes can be found in the predefined_shapes.rb file.

If you think there's a shape everyone should have, feel free to open an issue! Or better yet, a PR!