Usually the current numericValue
of the input.
Information about the conditions under which the validation is occurring.
If an object is returned the value of customValidity
will be set
as the element's custom validity, if null or undefined the validity message
will not be updated.
Generated using TypeDoc
Implementations of this function examine the current
numericValue
and determine if it is valid or not and if the validity should be reported to the user.Set
customValidity
to an empty string to make the input valid.