Spacer (spacer)

A spacer should only be used inside an hstack or a vstack.

The spacer element will push the size value along a given axis to consume the remaining available space.

A vertical spacer has no horizontal size, and a horizontal spacer has no vertical size.

The spacer accepts no children and has no visible rendering.

Example

border
    hstack
        text "Hi"
        spacer

┌─────────────────────────┐
│Hi                       │
└─────────────────────────┘

without the spacer:

border
    hstack
        text "Hi"

┌──┐
│Hi│
└──┘