Question

I’m new to objective-c.
I have an NSMutableArray . I wrote this:

for (int i=0; i<[allCombinations count]; i++)
{
    NSString *date = [[allCombinations objectAtIndex:i] objectForKey:@"keydate"];
    NSString *cachdepeDate = [date substringToIndex:8];
}

How can i see if cachdepeDate is alrady exsit in my NSMutbleArray?

If it is not exist how do I add it?

Should I make for loop, or there is a method for this?

Can i sort the NSMutbleArray?

Dates are in this format: “20110531” “YYYYMMDD”.
Thank you!

Answer 1

Use the following

[yourArray containsObject:cachdepeDate];