min method
FormFieldValidator
that requires the field's value to be greater than
or equal to the provided number.
Implementation
static FormFieldValidator min(
num min, {
String errorText,
}) {
return (val) {
if (val != null &&
((val is num && val < min) ||
(val is String &&
num.tryParse(val) != null &&
num.tryParse(val) < min))) {
return errorText ?? "Value must be greater than or equal to $min";
}
};
}