Press and hold a button to repeat; it speeds up. In the field: arrows, Shift+arrow or Page Up and Down for ten, Home and End for the bounds.
Buttons disable at the bounds. Typed values clamp when you leave the field.
Between 1 and 10
A step of 0.5, and a step of 25 with Page Up and Down moving 250.
Intl.NumberFormat both ways: typed text is parsed back, so '1,250' and '$1,250.50' both work.
Units per colorway
Optional
Compose the parts, and swap the buttons with `render`.
Steps of five
Increase on the inline start, decrease on the end.
Three steppers in a sample list. Infants are capped by the adult count.
3 guests (sample)