NSMutableDictionary removeObjectsForKeys
- (void)removeObjectsForKeys:(NSArray *)keyArray
Parameters
keyArray
An array of objects specifying the keys to remove.
Discussion of [NSMutableDictionary removeObjectsForKeys]
If a key in keyArray does not exist, the entry is ignored.
NSMutableDictionary removeObjectsForKeys example.
NSMutableArray *keysToDelete = [NSMutableArray array];
for (id obj in [yourDictionary keyEnumerator]) {
//do stuff with obj
if (shouldBeDeleted(obj)) {
[keysToDelete addObject:obj];
}
}
[yourDictionary removeObjectsForKeys:keysToDelete];
for (id obj in [yourDictionary keyEnumerator]) {
//do stuff with obj
if (shouldBeDeleted(obj)) {
[keysToDelete addObject:obj];
}
}
[yourDictionary removeObjectsForKeys:keysToDelete];
Example of [NSMutableDictionary removeObjectsForKeys].
NSMutableDictionary* d = [NSMutableDictionary dictionaryWithDictionary: bigDict];
[d removeObjectsForKeys: [NSArray arrayWithObjects: @"address", @"age", nil]];
[d removeObjectsForKeys: [NSArray arrayWithObjects: @"address", @"age", nil]];
NSMutableDictionary removeObjectsForKeys example.
NSSet *keys = [lastMsgs keysOfEntriesPassingTest:^BOOL(id key, id obj, BOOL *stop) {
return [obj[@"type"] intValue] == 1;
}];
NSMutableDictionary *dict = [lastMsgs mutableCopy];
[dict removeObjectsForKeys:[keys allObjects]];
return [obj[@"type"] intValue] == 1;
}];
NSMutableDictionary *dict = [lastMsgs mutableCopy];
[dict removeObjectsForKeys:[keys allObjects]];
