ShoeSize

A shoe size in its system, as the box writes it: UK 7.5, EU 42.

Use it for shoes in a shop. For clothes, use ClothingSize.

Shape

Example

ShoeSize { system: ShoeSizeSystem.uk size: "7.5" }

text.parse(raw, as: ShoeSize) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as UK 7,5, UK 7.25 or UK 07.

Good to know

• A half size is written with a point, 7.5. 7,5 and 7.25 are refused.
• == tells you whether two are the same. < and list.sort_by don't take it, so sort by one of its parts instead.

In JSON

A string, in a request, a response or json.write:

"UK 7.5""EU 42""US 9"

Details