Hi,
I want to use blocks to extract the min price and the max price from
an NSArray of trips. I've found the following way:
float minValue = 0.0;
[someTrips enumerateObjectsUsingBlock:^(id obj, NSUInteger idx,
BOOL *stop) {
if (minValue == 0.0 || [[obj adultFinalPrice] floatValue] < minValue) {
minValue = [obj floatValue];
}
}];
float maxValue = 0.0;
[someTrips enumerateObjectsUsingBlock:^(id obj, NSUInteger idx,
BOOL *stop) {
if (maxValue == 0.0 || [[obj adultFinalPrice] floatValue] > maxValue) {
maxValue = [obj floatValue];
}
}];
I've just begun to use blocks and I wonder if there is a more brief
way, may be without the need to define the float variables before the
iterations.
I've also looked for a solution with NSExpression and NSPredicate with
the function min/max but if I've correctly understood the use of
NSExpression and NSPredicate with such functions is only for CoreData.
Thanks.
Jean
--
“We are what we repeatedly do. Excellence then, is not an act, but a habit.”
Aristotle
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