rangeUnderflow property
bool
get
rangeUnderflow
The read-only rangeUnderflow property of a
ValidityState
object indicates if the value of an input, after having been edited by
the user, does not conform to the constraints set by the element's
min
attribute.
If the field is numeric in nature, including the date, month, week,
time, , number and range types and a min value is set, if the
value doesn't conform to the constraints set by the
min
value, the rangeUnderflow property will be true.
Given the following:
<input type="number" min="20" max="40" step="2" />
if value < 20, rangeUnderflow will be true. When true, the element
matches the and CSS pseudo-classes.
Implementation
external bool get rangeUnderflow;