minValue function
Implementation
bool minValue(Object? value, num min) {
num? _val;
if (value is String) {
_val = num.tryParse(value);
} else if (value is num) {
_val = value;
} else if (value is int) {
_val = value;
} else if (value is double) {
_val = value;
}
return _val != null && _val >= min;
}