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author | Levi Bostian <levi.bostian@gmail.com> | 2015-10-18 12:00:55 -0500 |
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committer | Levi Bostian <levi.bostian@gmail.com> | 2015-10-18 12:00:55 -0500 |
commit | 3022f639a976f8d6e4adfe523d4fcb3408855038 (patch) | |
tree | 5cc59187aff1c379b0f982e6d854d5e50bbc9a52 /objective-c.html.markdown | |
parent | 5e05ac6b045d7726200fa8835f88ca6dc8cbc417 (diff) | |
parent | b78a67c9fc29aac44848707f8119048286890a8d (diff) |
Merge pull request #1539 from TolgaB/patch-1
Mutable And Immutable Changing
Diffstat (limited to 'objective-c.html.markdown')
-rw-r--r-- | objective-c.html.markdown | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/objective-c.html.markdown b/objective-c.html.markdown index cf6bf780..30bb8843 100644 --- a/objective-c.html.markdown +++ b/objective-c.html.markdown @@ -148,7 +148,13 @@ int main (int argc, const char * argv[]) [mutableDictionary setObject:@"value1" forKey:@"key1"]; [mutableDictionary setObject:@"value2" forKey:@"key2"]; [mutableDictionary removeObjectForKey:@"key1"]; - + + // Change types from Mutable To Immutable + //In general [object mutableCopy] will make the object mutable whereas [object copy] will make the object immutable + NSMutableDictionary *aMutableDictionary = [aDictionary mutableCopy]; + NSDictionary *mutableDictionaryChanged = [mutableDictionary copy]; + + // Set object NSSet *set = [NSSet setWithObjects:@"Hello", @"Hello", @"World", nil]; NSLog(@"%@", set); // prints => {(Hello, World)} (may be in different order) |