iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-23 09:41:36 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add more data type examples.

Browse Source 
Add NSMutableSet examples.
This commit is contained in:
Levi Bostian 2013-12-26 12:20:16 -06:00
parent 18f669089e
commit f15a2b5f78
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
objective-c.html.markdown
View File

@ -131,12 +131,19 @@ int main (int argc, const char * argv[])
NSDictionary *aDictionary = @{ @"key1" : @"value1", @"key2" : @"value2" };
NSObject *valueObject = aDictionary[@"A Key"];
NSLog(@"Object = %@", valueObject); // Print "Object = (null)"
// NSMutableDictionary also available as mutable dictionary object.
// NSMutableDictionary also available as a mutable dictionary object.
NSMutableDictionary *mutableDictionary = [NSMutableDictionary dictionaryWithCapacity:2];
[mutableDictionary setObject:@"value1" forKey:@"key1"];
[mutableDictionary setObject:@"value2" forKey:@"key2"];
[mutableDictionary removeObjectForKey:@"key1"];
// Set object
NSSet *set = [NSSet setWithObjects:@"Hello", @"Hello", @"World", nil];
NSLog(@"%@", set); // prints => {(Hello, World)} (may be in different order)
// NSMutableSet also available as mutable set object.
// NSMutableSet also available as a mutable set object.
NSMutableSet *mutableSet = [NSMutableSet setWithCapacity:2];
[mutableSet addObject:@"Hello"];
[mutableSet addObject:@"Hello"];
///////////////////////////////////////
// Operators