getMinPrice method
Implementation
double getMinPrice(){
double _min = double.maxFinite;
for (var item in price) {
if (item.discPrice == 0) {
if (_min > item.price)
_min = item.price;
}else {
if (_min > item.discPrice)
_min = item.discPrice;
}
}
if (_min == double.maxFinite)
return _min;
return _min;
}